I did that a while back. used the shrink tool in win vista to get a new partition, installed xp on it But then XP took over my bootloader and I couldn't load vista. I had to download this trial software to add back vista. I think it was called easy bcd.

EDIT: and yeah, not only do your games work better in xp, but faster too...

Dual boot

Here are a couple of links that explains how.

http://www.windowstalk.org/dual_boot_vista.htm

http://apcmag.com/5485/dualbooting_vista_and_xp

i just wanted to know how to get it to work are there any trial or free prgrams that i can use like i heard of acronis boot loader would that work

yeh that easy bcd i mentioned does it. Well actually, it edits your bootloader to include both

yes acronis can set up your hdd for dual boot. and it also has its own bootloader

is it free
if it isnt is there nay other solution

there is a free version, with limited features,

i will check it out what is it called?

acronis and i beleive thats the best free one out there