I have the exact same error code, and am scratching my head to figure it out...
I'm running a P3 700mhz cpu, with dual boot 2000 pro. I installed the 2000 on one partition in my 1st hard drive. Then (after making sure 2000 was installed fine) started installing xp on the remaining partition there... got some file couldn't copy errors, and now its the same as the above prob... Can it be due to the partition? I'm pretty sure the HD is fine.... and the CD should work, not scratched all that much...
Can I individually copy the 4 files marked as missing during the install from the command prompt? Where would I put them?
{: msgpc.sys, msdxm.ocx, mshtml.dll, msexc140.dll (I think that last one is the correct spelling/name.) }
Did you solve your problem? how?
Edit : It looks like your CDrom drive was the prob? I can try installing from another one, but that cdrom drive worked fine for the 2000 install!