Multiple Connected Sortables Issue regarding Revert

Multiple Connected Sortables Issue regarding Revert

The Scenario:
I have a single page that has three sortables on it (arranged
horizontally relative to one another), all connected via the
"connectWith" option. Between the three of them, I can sort, drag and
drop...no problems. I added a droppable on the bottom left of the page
so that the user can drop an item from any of the three lists onto it,
some action is performed (in this case, a search based on the dropped
item), and the dropped item should then revert back to its place of
origin.

LIST A LIST B LIST C

[droppable here]

The Issue:
If I drag an item from list C to the droppable, and I have crossed
over any of the other div containers for list A or B, the item reverts
back to the last list that was crossed over instead of its list of
origin! My list divs are of a fixed height and scrollable, so although
the scrollable area ends above the droppable, the actual height
extends down to it.

Any ideas??? Somehow I need to make it so that an item does not become
part of a list until the user actually lets it go on top of the target
list. it is currently behaving such that an item becomes part of the
list as soon as it crosses over the list's border.

Thanks so much in advance for any input/assistance you can give me.
I've run out of things to try, and that's never a good feeling.

Screen shot:
http://www.dougboude.com/images/jqueryissue.gif

Code:
<html>
   <head>
      <title></title>
      <LINK REL=STYLESHEET TYPE="text/css" HREF="/js/jquery/css/smoothness/jquery-ui-1.7.2.custom.css">
        <script src="/js/jquery/jquery-1.3.2.min.js" type="text/javascript"></script>
        <script src="/js/jquery/jquery-ui-1.7.2.custom.min.js" type="text/javascript"></script>   
   </head>
   <body>
      <table width="50%" border="1">
         <tr>
            <td valign="top">
               <div class="wrapper connectedSortable" id="tlwrapper" style="height:425px;width=350px;overflow-y:scroll;">
                  <div class="p"><img class="grabme" src="../images/grippy.gif" style="cursor:move;"/>John Smith <img src="../images/icon_person.gif" />&nbsp;<a href="#"  ><img style="border:none;" src="../images/icon_information.gif" /></a></div>
               </div>
            </td>
            <td valign="top">
               <div class="wrapper connectedSortable" id="tmwrapper" style="height:425px;width=350px;overflow-y:scroll;">
                  <div class="p"><img class="grabme" src="../images/grippy.gif" style="cursor:move;"/>Lucy Lu <img src="../images/icon_person.gif" />&nbsp;<a href="#"  ><img style="border:none;" src="../images/icon_information.gif" /></a></div>
                  <div class="p"><img class="grabme" src="../images/grippy.gif" style="cursor:move;"/>Johny McJohnerson <img src="../images/icon_person_un.gif" />&nbsp;<a href="#"  ><img style="border:none;" src="../images/icon_information.gif" /></a></div>
                  <div class="p"><img class="grabme" src="../images/grippy.gif" style="cursor:move;"/>Roger McRogerson <img src="../images/icon_person_dep.gif" />&nbsp;<a href="#"  ><img style="border:none;" src="../images/icon_information.gif" /></a></div>
                  <div class="p"><img class="grabme" src="../images/grippy.gif" style="cursor:move;"/>Stu McStupidson <img src="../images/icon_person.gif" />&nbsp;<a href="#"  ><img style="border:none;" src="../images/icon_information.gif" /></a></div>
                  <div class="p"><img class="grabme" src="../images/grippy.gif" style="cursor:move;"/>Archie Bald <img src="../images/icon_person.gif" />&nbsp;<a href="#"  ><img style="border:none;" src="../images/icon_information.gif" /></a></div>
                  <div class="p"><img class="grabme" src="../images/grippy.gif" style="cursor:move;"/>Betty Will <img src="../images/icon_person_dep.gif" />&nbsp;<a href="#"  ><img style="border:none;" src="../images/icon_information.gif" /></a></div>
                  <div class="p"><img class="grabme" src="../images/grippy.gif" style="cursor:move;"/>Marge McLargerson <img src="../images/icon_person.gif" />&nbsp;<a href="#"  ><img style="border:none;" src="../images/icon_information.gif" /></a></div>
                  <div class="p"><img class="grabme" src="../images/grippy.gif" style="cursor:move;"/>Toby McToberson <img src="../images/icon_person.gif" />&nbsp;<a href="#"  ><img style="border:none;" src="../images/icon_information.gif" /></a></div>
                  <div class="p"><img class="grabme" src="../images/grippy.gif" style="cursor:move;"/>Word Sherril <img src="../images/icon_person.gif" />&nbsp;<a href="#"  ><img style="border:none;" src="../images/icon_information.gif" /></a></div>
                  <div class="p"><img class="grabme" src="../images/grippy.gif" style="cursor:move;"/>Phrase Denise <img src="../images/icon_person.gif" />&nbsp;<a href="#"  ><img style="border:none;" src="../images/icon_information.gif" /></a></div>
               </div>
            </td>
            <td valign="top">
               <div class="wrapper connectedSortable" id="apwrapper" style="height:425px;width=350px;overflow-y:scroll;">
                  <div class="p"><img class="grabme" src="../images/grippy.gif" style="cursor:move;"/>Johny Cake <img src="../images/icon_person.gif" />&nbsp;<a href="#"  ><img style="border:none;" src="../images/icon_information.gif" /></a></div>
                  <div class="p"><img class="grabme" src="../images/grippy.gif" style="cursor:move;"/>Tim Barnhill <img src="../images/icon_person.gif" />&nbsp;<a href="#"  ><img style="border:none;" src="../images/icon_information.gif" /></a></div>
                  <div class="p"><img class="grabme" src="../images/grippy.gif" style="cursor:move;"/>Roger Rabbit <img src="../images/icon_person_dep.gif" />&nbsp;<a href="#"  ><img style="border:none;" src="../images/icon_information.gif" /></a></div>
                  <div class="p"><img class="grabme" src="../images/grippy.gif" style="cursor:move;"/>Alison Chains <img src="../images/icon_person.gif" />&nbsp;<a href="#"  ><img style="border:none;" src="../images/icon_information.gif" /></a></div>
                  <div class="p"><img class="grabme" src="../images/grippy.gif" style="cursor:move;"/>Tiny Archibald <img src="../images/icon_person.gif" />&nbsp;<a href="#"  ><img style="border:none;" src="../images/icon_information.gif" /></a></div>
                  <div class="p"><img class="grabme" src="../images/grippy.gif" style="cursor:move;"/>Bruce Willis <img src="../images/icon_person.gif" />&nbsp;<a href="#"  ><img style="border:none;" src="../images/icon_information.gif" /></a></div>
                  <div class="p"><img class="grabme" src="../images/grippy.gif" style="cursor:move;"/>Lone Ranger <img src="../images/icon_person.gif" />&nbsp;<a href="#"  ><img style="border:none;" src="../images/icon_information.gif" /></a></div>
                  <div class="p"><img class="grabme" src="../images/grippy.gif" style="cursor:move;"/>George Bush <img src="../images/icon_person.gif" />&nbsp;<a href="#"  ><img style="border:none;" src="../images/icon_information.gif" /></a></div>
                  <div class="p"><img class="grabme" src="../images/grippy.gif" style="cursor:move;"/>Ned Divine <img src="../images/icon_person.gif" />&nbsp;<a href="#"  ><img style="border:none;" src="../images/icon_information.gif" /></a></div>
                  <div class="p"><img class="grabme" src="../images/grippy.gif" style="cursor:move;"/>Derek Zoolander <img src="../images/icon_person.gif" />&nbsp;<a href="#"  ><img style="border:none;" src="../images/icon_information.gif" /></a></div>
                  <div class="p"><img class="grabme" src="../images/grippy.gif" style="cursor:move;"/>Peter Parker <img src="../images/icon_person.gif" />&nbsp;<a href="#"  ><img style="border:none;" src="../images/icon_information.gif" /></a></div>
                  <div class="p"><img class="grabme" src="../images/grippy.gif" style="cursor:move;"/>Marylin Monroe <img src="../images/icon_person_dep.gif" />&nbsp;<a href="#"  ><img style="border:none;" src="../images/icon_information.gif" /></a></div>
                  <div class="p"><img class="grabme" src="../images/grippy.gif" style="cursor:move;"/>Justin Roper <img src="../images/icon_person.gif" />&nbsp;<a href="#"  ><img style="border:none;" src="../images/icon_information.gif" /></a></div>
                  <div class="p"><img class="grabme" src="../images/grippy.gif" style="cursor:move;"/>Bearded Barley <img src="../images/icon_person.gif" />&nbsp;<a href="#"  ><img style="border:none;" src="../images/icon_information.gif" /></a></div>
                  <div class="p"><img class="grabme" src="../images/grippy.gif" style="cursor:move;"/>Boyan Kostadinov <img src="../images/icon_person.gif" />&nbsp;<a href="#"  ><img style="border:none;" src="../images/icon_information.gif" /></a></div>
                  <div class="p"><img class="grabme" src="../images/grippy.gif" style="cursor:move;"/>Andrea Smith <img src="../images/icon_person_un.gif" />&nbsp;<a href="#"  ><img style="border:none;" src="../images/icon_information.gif" /></a></div>
                  <div class="p"><img class="grabme" src="../images/grippy.gif" style="cursor:move;"/>Derek Smith <img src="../images/icon_person_un.gif" />&nbsp;<a href="#"  ><img style="border:none;" src="../images/icon_information.gif" /></a></div>
                  <div class="p"><img class="grabme" src="../images/grippy.gif" style="cursor:move;"/>Fu Manchu <img src="../images/icon_person.gif" />&nbsp;<a href="#"  ><img style="border:none;" src="../images/icon_information.gif" /></a></div>
                  <div class="p"><img class="grabme" src="../images/grippy.gif" style="cursor:move;"/>Bruno Boude <img src="../images/icon_person.gif" />&nbsp;<a href="#"  ><img style="border:none;" src="../images/icon_information.gif" /></a></div>
                  <div class="p"><img class="grabme" src="../images/grippy.gif" style="cursor:move;"/>Rot Gut <img src="../images/icon_person.gif" />&nbsp;<a href="#"  ><img style="border:none;" src="../images/icon_information.gif" /></a></div>
               </div>
            </td>
         </tr>
         <tr>
            <td>
               Adjuster:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<div id="adjtarget" class="connectedSortable"><img src="../images/target.gif" align="absmiddle" /></div> <---- <span style="font-size:11px;color:black;font-style:italic;">(drop an adjuster here...)</span>
            </td>
            <td> </td>
            <td> </td>
         </tr>
      </table>
      <script>
         $(document).ready(function(){
            $("#tmwrapper, #apwrapper, #tlwrapper").sortable({
               tolerance: 'fit',
               handle: '.grabme',
               connectWith: $('.connectedSortable'),
               items: '.p',
               helper: 'clone',
               revert: 'valid',
               receive: function(ev,ui){alert('receiving!');
                  //var droppedPerson = ui.item.html();
                  //change class to match target area
                  //append to target
               },
               update: function(ev,ui){
                  alert('updating!');
               }
            }).disableSelection();
            $("#adjtarget").droppable({activeClass:'.targethighlight',drop:function(ev,ui){alert('dropped');}});
         });
      </script>
   </body>
</html>