Processor problems

hello,,
these may sounds kind of dumb,
but im running a 64 bit version of windows and i wont let me doo anything!
sure its cool...but its limitations are realy starting to bug me
i wont vista 2 and other programs that WILL work on a 32 bit version but not on a 64 bit version
is there anyway that i can get a 32 bit xp or run my computer in this way soo i can download these programs...
seriusly need help!!!
hit back when possible :)
thankss.