After adding NoScript plugin to my FF, and whitelisting whole UT on it, I got pretty much everything working as it should... except search.

Here's what I found: the source around the search button looks like this:

<a onmouseout="window.status='';return true" onmouseover="window.status='Search the messages area';return true" target="MESSAGE" href="http://www.levelextreme.com/wconnect/wc.dll?2,28,1">

...i.e. that's what FireBug 1.2.1 gives. However, FF's "show source" for the upper frame shows:

<A HREF="DataEntrySearch.aspx" TARGET="MESSAGE" 
   onMouseOver="window.status='Search the messages area';return true" onMouseOut="window.status='';return true">
   <IMG SRC=http://www.levelextreme.com/Images/MenuSearchText.gif BORDER=0 
       Title="Search the messages area" WIDTH=56 HEIGHT=22 
       onMouseOver="this.className='ImageOn'" onMouseOut="this.className='ImageOff'"></A>

Obviously, some of this doesn't work, because NoScript is blocking some of it and so I'm getting a "The system cannot find the path specified. " because this is aspx now, not wwwc (why would it show the old link, I wonder). However, if I create a bookmark to go straight to http://www.levelextreme.com/DataEntrySearch.aspx - that works and I get to run it in a brand new tab. Even better, it doesn't know the original UT tab, so if I click "Show all" from some of the messages I found, they don't go into my primary UT window - good!

I guess this is a minor thing, not a show-stopper at all. This is just to help Michel to know where look for one possible source of old links which don't work.