HELP I can't upgrade my Radeon drivers in XP

[Brutuskend]

It tell's me to un-install the old drivers, and when I do and reboot, XP automatically reinstalls the OLD drivers.
If I install without removing theold drivers windows "BOOTS" to a blank screen!
I tryed un-installing, rebooting, and re starting in safe mode, but XP still re installs the OLD drivers!

ANY HELP???

T.I.A.