I have done a fresh install of Windows XP and I got UFT, Legacy 3.0 and PAF 5 to work but I cannot get TMG to even start. I go past the warning and it get to the start part where you put your name and stuff but I can not import my UFT data base or even import a GEDCOM. It keeps coming up with a message that the program is incompatible with this version of Windows. I don't know how it would have worked if I had upgraded over top of Win98.
All I know is UFT runs way better on XP than I ever had it on Win98 so I am happy. I only wish someone would have bought UFT and continued development.:-)