You should not have installed the OS again - a bsod is not something that necessarily requires the OS to be reinstalled - generally it's a minor issue that can be fixed. And if you did a full install but did not format, you probably did a "parallel" install and now have two Windows installations. Boot the system and open Windows Explorer. Do you see a folder named "Windows Old" or "Windows.old"? If so, that's your original Windows. And all of your files are still on the system in their original locations.
Here's my suggestion. At this point you should search the system for all of the files you need. Download them to removable media (cd, dvd, usb drive, external hd, whatever). Make sure you have everything you need. Then create an sp3 slipstream cd (http://www.howtohaven.com/system/slipstream-xp-service-pack-3.shtml
). It doesn't matter if you are using dial up or the fastest broadband connection available - you need to have the newest release of the OS installed at all times. You can download sp3 and create the disc on a different system if need be. Then boot to the newly created cd, format the drive, and install the OS from scratch. Make sure you then install all of the needed drivers (starting with the chipset driver) and then Windows Updates (only critical updates, no hardware or driver updates).