My job uses WinXp Pro, Ie6, and Office 2003. AND we use an app called QAD in a dos box. It's nice to be in a minority, So I can feel special.
With the exception of the dos box, every corporation I've ever worked for has been the same way. In my current position, I've actually ASKED IT to allow me to install firefox, IE7, or....god ANYTHING with tabs (yea, I have to ask. My company's machines are locked down tighter than a whale's butthole) and have been DENIED. Apparently my company's stance is "no, you can not have a safe browser. Please continue to use the veritable swiss cheese of internet software because its what we've blindly decided to support, and we're to arrogant to change."