Rizz, to help with the voice recognition, you'll have to "teach" it to recognize your voice, it being the Windows voice recognition software. I'm not at home so I can't check, but when the demo came out I installed the voice recognition stuff on it's own and there was a teaching tool where you basically read portions of Brothers Grimm tales (and other stuff) so that the software would recognize how you talk.
I uninstalled it when I got UT2004 retail because UT2004 installed it on it's own (I didn't want to have anything that would muck up the install), but I'm not sure if it came with all the tools. Take a run through your Start menu or your audio options and look for something new in there. I'll have a look tonight myself.
It just might have a problem with your accent.
And welcome to UT2004, Rizz! Less pentegrams and stuff here, I don't think you'll have a problem with it (UT's more high tech than gothic), so long as you turn off the mature taunts.
PS - there is no "voice to text" as far as I know, but there is "text to voice". I haven't used it much, it never really worked that well for me.