Uninstall UT.
Then get it from:
http://www.wootabulous.nl/request.php?288
Patch:
http://dodownload.filefront.com/1405841//c1aeba3817b6349d93451dcbcbf0920e4fa20de77179962d375ad7774e67dbf9a5f7ac45541f639c
Bonus Packs:
=1=
http://download.beyondunreal.com/get.php/6/official/ut/utbonuspack.zip
=2=
http://download.beyondunreal.com/get.php/6/official/ut/utbonuspack2.zip
=3=
ftp://beyondunreal.gameservers.net/official/ut/utinoxxpack.umod
=4=
ftp://beyondunreal.gameservers.net/official/ut/utbonuspack4.umod
Install it,the patch and bonus packs.Then try.