I seem to have run into a rather odd error while doing a few repair installs on my Windows XP system (which, by the way, have yet to fix my initial problem). During the repair installation process when the little progress bar says "Installing Hardware", a little box contantly pops up saying it can't find various .dll, .exe, and sometimes .xsl files and to make sure the Windows installtion disc is in the disc drive

When I click the "Browse" button to point the prompt to the right file on the disc, it doesn't take it. It just gives the same prompt over again.
The only way I've found around this problem is to copy the file it's asking for from my other computer onto a floppy disk and then putting the floppy disk in the computer running the installation and pointing the prompt to the A: drive (yay for run-ons). This wouldn't usually be a problem, except this time around, the installation is asking for about a million different files. This means I'm stuck running back a forth from room to room with floppy disk in hand, copying, deleting, copying, deleting, copying, deleting.
I originally thought it might just be because I was using a disc I had slipstreamed SP2 to, but I also seem to have the same problem while using my original Windows XP disc which is in pristine condition.
Any ideas? This is driving me crazy.
Thanks