YO! Thanks Cid =] Really glad you like it. I think everyone here will appreciate it!!
So, to install this in UT3 (Any version of UT3....I bought the UT3: Black Edition off of steam for 20$, works perfectly), you have to put it in your "My Documents / My Games / Unreal Tournament 3 / UTGame / Published / CookedPC / CustomMaps" folder.
If the "Published / CookedPC / CustomMaps" folders don't exist, make them with those exact names, and place the DM-TristamusCanyon.ut3 file in there (inside CustomMaps).
You won't need the "dm-tristamuscanyon9" file. Just delete that >D
Also, here's a video of me playing through it last night with some bots, so you guys can check it out before-hand.http://youtu.be/H-YVRi07G44