if and when you remove windows vista beta, you can also just insert your windows CD, and go to the recovery console and do "fixboot" and that will remove the vista boot loader, and make a new master boot record, so that it will just boot windows.
you would have to reformat the drive. the problem that i had was the boot loader that it installs got all messed up when i removed the second HD that had vista on it.
do this test http://www.testmy.net/tools/test/d_load.php?&st=st&tt=1&ta=1&top=000-2&out_src=20MB
and this one http://www.testmy.net/tools/test/d_load.php?&st=st&tt=1&ta=1&top=mirror-dlewis23&out_src=20MB
and post both results
cached again.
try running a test from the second server http://www.testmy.net/o-000-2 or a mirror like this one http://www.testmy.net/o-mirror-dlewis23
that speed test sucks, for many reasons the first being it gives slow results "first test 149.2 Kbps" for me. second once you do the first test, the second test is compleatly cached 'second test Infinity Kbps" don't use that speed test.
Crazimon welcome to the forum.
that speed result is cached. clear your cache, and do another test, if you get the same results try another browser. or another speed test such as http://www.speakeasy.net/speedtest/