CF19 Mk2 Hotkey Driver error

Guys I need your help, I have for the last week been trying to install Xp on my Toughbook, I used to have it installed on this pc but now have a fully working pc with Win7 on it. Its a digitil screen on it not the touch one.

My problem is I need Winxp on it to test out a diagnostic box that runs on Xp. My problem is I can load WinXp Pro with service pack 3 on it ok but when I try to install the driver Hotkey in the order listed on the forum my pc crashes with blue screen.
I have been reading a...

CF19 Mk2 Hotkey Driver error

CF19 Mk2 Hotkey Driver error