Hey Rachelle;
Mozilla has a skinny kid brother. His name is Firefox, but I don't think that app would work as IE does, seeing as how it is based on Netscape code.
Opera could possibly perform this function, though.
It was sort of comical little browser when I ran it on XP, back in my ISP days...it was not too good at guessing what the site being browsed was optimized for, so it would often guess wrong and really screw it up.
However, there was a feature that the newer versions still use, and that is that, like Konquerer, Opera can pretend to be IE4, 5, 5.5, 6, or 6.1 if you want it to.
That little function, along with their refusal to not use the latest technology (including Java code), just might be what lets it perform well for you.
Hope it works out. Let me know!!
Best regards,
FastVFR