Why are you formating the Hard drive?? stick a W98 OR WME floppy in on boot up choose without cd rom support on the A:\ prompt type FDISK delete the none dos partition and put in the W2000 disk it will format the drive for you like WXP does.
I assume you are using NTFS and not FAT32.
If you have activated your copy of WXP to many times just ring the activation support line and say you have major promblems with your pc they will give you a new key i have never had a problem
Are you using a USB mouse and keyboard?