Classic ASP "unfriendly" error messages, via jquery ajax

Classic ASP "unfriendly" error messages, via jquery ajax

Building a small internal website for am employer.
 
Getting quite a bit of use out of the Jquery Ajax tools, but all the ajax error handling methods seem to want to hide my old-stand-by, ugly-but-descriptive unfriendly error messages from me.
 
Keep in mind, I'm using Classic ASP as the server side scripting language (yeah...I know). Whenever an Ajax error occurs I get a generic " Internal Server Error" message returned via both/either the .ajaxError() method and the .fail method.
 
What (id anything) can I do to get my old-school "unfriendly" error messages back?
 
Thanks in advance for any help. Any Classic ASP dinosaurs left out there?