I can't wait until HP comes out with XP Driver. I am going to try to reformat to XP. I will post my progress here.
Update 5:11PM
Ok after 2 hours of work. I got followed things to work on my Mini with XP.
WLAN (Broadcomm43xx)
LAN (Broadcom 57xx)
VIA C7 Graphic Card
VIA C7 Chipset
Keyboard ShortCut
Mouse
Not Working
Audio Device AD1984A High Definition Audio Bus