Reverting to IE6 from IE7 Beta and quirks with Windows Server 2003

I feel like an idiot, but how would I get rid of IE7 and go back to IE6? Do I have to download IE6 again, and from where (all I can find is the service pack and I don't want all of the other junk, just the internet browser). I'm being very cautious because this is not my computer and it's running Windows Server 2003, an OS that I am not familiar with.

Also, I have noticed a problem with IE (both 6 and 7) on Windows Server 2003. Certain pages don't load- like when booking flights on Travelocity and pulling up maps on GoogleMaps. I think it might be a problem with javascript, because I've noticed that when I when I hover over the links that won't open at the bottom of the screen it gives a javascript message. One of the computers (the client, I believe) only has this problem when attempting to launch IE from the remote server application (which is Windows Server 2003), and it works fine from WindowsXP. Anyone have an idea of what is going on, and how to fix it?