I knew that would get you going .
I've used many, many different ways to run an unattened/Modded XP setup and now finally after nearly two years of p***ing around I've settled on the simplest setup going.
At present my setup consists of:
RyanVM's Update Pack, WMP10 addon and DirectX 9c addon.
B‚shrat's DriverPacks (all of them except MassStorage).
Windows Post-Install Wizard to install all my apps.
To bind all this together I have my own custom addon to use with the RyanVM Integrator. It consists of files to add/update unattened setup and integrate the MediaCentre Royale theme. Included in this package is an inf I made to update reg settings at specific stages of install and to finally run RunOnceEx to finish the DriverPacks setup and execute WPI. It's clean and (even if I do say it myself) professional.
Most of this is easy to do i.e adding Ryan's updates/addons and the DriverPacks. The fun really starts when your learning how to build your own addons, write inf's and configure WPI. They're a bit more time consuming.
All-in-all the $OEM$ folders, and a batch file could do the small things I've done with my little addon, I'm just being a know-it-all (let the flaming commence).
The only real benefit with integration is you don't have to use oemprecopy, or what ever it's called, that messes up F6 driver installation during txtmode. You can also run an upgrade install with the /makelocalsource switch and everything works as it should ($OEM$ folders only work on a full OEM install!). Not that I ever do but you can.
If you want some help I'll be more than heppy to barrage you with links .