IE7 cant uninstall?

[globalexplorer]

Dear Forum,

I have XP and had IE7 installed. I had to use some work software that didnt work well with IE7 or Firefox, so I installed Firefox, uninstalled IE7 and then downloaded IE6 via firefox to install that but when I try to run the IE6 it says that setup was unable to continue because a newer version of IE was found on my system.

I have checked everywhere and cant find any sign of IE7 on my system. Can anyone give me some recommendations?

Thank you very much.

Cheers-

GE