I think it has been well established that there are some substantial incompatibilities with Microsoft products and the osTicket web interface.
Here are some issues that I've collected in comparing IE6 and 7 with Firefox:
IE6 - Crashes directly after logging into the Admin site (./scp/) Other than that, the submitting of tickets and viewing of tickets seems to work just fine. (with minor graphical glitches)
IE7 - Submitting and tracking of tickets works great. (Again, different, minor graphical glitches) I can log into the Admin site, but there are some major issues in there as far as being able to see any information at all. The only tab where something is actually displayed after the header is the Directory tab
(cgrray, you said that you can only see the system preferences and settings, but I haven't been able to see anything on that tab with IE7, I wonder if it has to do with the server software or PHP settings???).
Also the body of the entire frame/page is not centered. (thats not important though as its only in the admin site and wont be available to everyone)
(Included attachment has screenshots of a couple problems.)
[examples.zip](https://forum.osticket.com/assets/files/migrated/4/2371161a61156ec1002b11ddf1c9eb2.zip)