Slsipstreamed XP CDs (those torrents and other crap you get for 100 baht) are notorious for being headaches (which is exactly the point I've been trying to emphasize here) The fake XP installs contain all kinds of shit like bad drivers and result in the problems you are experiencing because you are installing things which are not intended for your exact system.
For example, there are several ADI chipsets on current motherboards. Someone has an ABIT motherboard, creates a slipstream for that ADI sound chip, and then uses the slipstream to make a torrent. Torrent gets downloaded and passed on to you on a CD (unknow to you). You end up with the wrong drivers and during the XP install the driver stack and the registry get hosed because XP automatically is told to install the wrong files (which is what slipstreaming is all about).
I make my own slipstream CDs but ONLY include Intel chipset drivers, Intel network drivers, and NVIDIA/ATI drivers. I never install VIA chipset drivers on an XP system because there's no reason to.