Acturly the best way is to load it in a static universe file because then you can make collisions easier. To do so you need to build a exe and take the universe.dbo and .dbu and the lightmaps folder out of the level rar you wan't (The password is mypassword) and then you can load it as a dbo universe from there.
There is a code snippet to help out with this, you can find it in Dark Snippets or what ever that addon was called.
Windows 7, Amd Athlon 7750 Black Editon (64 bit,3ghz + Dual Core), ATI Readon HD 4870 1gb Edition, 4gb Ram.
