I guess this would apply to any FX series card. The newest driver available for Windows XP is 175.19, which seems far too new. I gather that the performance of the FX cards improved over time, though, especially in PS 2.0 games. So older drivers might not necessarily be better.
I use 3 versions for my 5900U, Though I'm running Windows '98 with it so I'm not sure they all apply.
45.23 - The last Detonator drivers - Some games break with anything newer than this like No One Lives Forever for example. This is the default driver I use unless it's a more modern game.
61.76 - These provide a nice boost in speed with newer games, for example the Last test in 3dMark2001 doubles it's framerate with this driver. However again, some games will work and some games won't.
81.98 - The last official Win '98 drivers. These are even for later games, some of which don't work with the 61.76s.
Between these 3 drivers I can usually get whatever I want working, but generally since I have an XP machine for newer games I stick mostly with 45.23s for compatibility. Trying to write this down for you it's been a while since I shuffled through all these and I wish I could recall more concrete reasons to give you. Like I also said I'm using Win98 so maybe this doesnt apply to your situation.
Well, I hope this helps at all.