I have so far at least got the client to load, but there is no text. All the images and textboxes are there though. This is in Wine 1.1.42 on Debian Squeeze. I am suspecting that the tahoma font is not installed in the wine windows\fonts directory, so once I get that in there, I'll know. This is a fairly common issue on wine, so fingers crossed.
As far as crashing on load, I had that problem too and it appeared to be that gecko was not installed for wine. Try running: wine iexplore.exe www,google,com and see it that connects. If it stops and asks you for gecko, you can either install it at the prompt or go find a version on your own. Be warned though that if you have ever ran wine as root, you will probably not be able to install gecko here. I had to completely remove wine and then try and find a version of it that would run on squeeze (don't want to try and walk my friends through compiling the latest when I can't see what they are doing

) Anyway, try to get gecko installed and see if you can at least load the client.