I'm not here to start trouble, but as far as I know, there hasn't been a single patch for the full version of UT. There had been several test/demo versions, but no patch so far for the full retail version.
Personally, having just purchased Unreal about 2 months ago ($9.99 on sale at Kmart)
I haven't gotten around to online play, but the single player runs pretty good with the 225 patch on my TNT in D3D. However, The UT demo runs excellent on my computer, net play and all. It's my guess that there were so many things they learned from Unreal that they incorperated into UT.....but just not practical or possible to just patch into Unreal. No one ever expected Quake to be patched to be just like Q2 when that came out, I say we are lucky that they are taking the time to work on what is surely a pretty old game to Epic. All in all, still a pretty good game.