Note: You need WinRaR for some of these downloads.
Unreal Beta Conversion by .:..: for regular unreal - Click Here
Unreal Beta (Doesn't work with original unreal) - Click Here
http://members.ziggo.nl/sjmdejong/ - The best site for cheats
http://oldunreal.com/editing.html - Some great links to tutorials on editing
http://www.hypercoop.tk/infobase.htm - Hyper.nl's Info base
http://liandri.beyondunreal.com/Unreal - A lot of info on unreal and its monsters.