Ajax Tabs won't resize via Resizable

Ajax Tabs won't resize via Resizable


I setup two really basic pages to try to troubleshoot a problem I'm
having on a much more complicated layout.
http://imbunche.com/jquery/tabs/tabs.html
http://imbunche.com/jquery/tabs/tabs-ajax.html
On the first page I'm using the example code for UI Tabs (stripped out
of the index page that comes with a full download of the latest
version). All I've added is the code to make the .ui-tabs-panel (the
panel beneath the tabs) resizable. It's a little bit wonky, but the
handle shows up in the bottom right corner and the panel is indeed
resizable.
On the second page I've switched the tabs so they pull their content
from other html files - so-called AJAX Mode (http://docs.jquery.com/UI/
Tabs#Ajax_mode). The tabs themselves work, but even though .ui-tabs-
panel is still the class given to these dynamically loaded divs
they're no longer resizable.
I'm guessing there's something really obvious I'm missing, but I've
been at it for hours so any help would be appreciated.
Cheers,
Chris