Welcome to the Bleepingcomputer Internal Hardware Forum!
Just a suggestion. Dont take it to that repair shop again!
Heres a solution:
If you have the operating systen installation disk, I would use fdisk off of a win98 or winME floppy boot disk and delete the partitions.
Then format the drive.
Then put in the windows XP cdrom.
Enter your BIOS (either F2 or DELETE key) it should say system setup and show you which key to hit.
Look for your BOOT option. choose your CDROM that contains the Windows XP disk as the first device.
Hit F10 and choose SAVE and EXIT
Boot from the CDROM and tell it to format and install Windows XP on one partition.
Make sure you have the windows Key handy.
Hopefully everything will be like new again.
If not post back to this thread.
EDIT: If you have a SYSTEM DISK that came with the notebook it may have a repair option on it as well as your Operating Sysytem, make sure you check its directories before using fdisk from a floppy as I suggested above.
Edited by MrBruce1959, 16 January 2010 - 09:22 PM.