OK Doll,
If you want to use the new HD, with the computer off, put the new one in. When you turn the computer on, let the screen turn on then hit the F2 key. If that one doesnt work, restart and try using the delete key. Go into bios and change the first boot drive to CD rom, then use the "auto detect HD" function to make sure that the bios is recognizing the HD. Save to Cmos and reboot with the Win XP disk in the CD drive. If this all works and the disk is loading, do a full format on the disk when it asks you to. You can format it in NTFS which is a little bit more stable than FAT.
If you want to use the new HD, with the computer off, put the new one in. When you turn the computer on, let the screen turn on then hit the F2 key. If that one doesnt work, restart and try using the delete key. Go into bios and change the first boot drive to CD rom, then use the "auto detect HD" function to make sure that the bios is recognizing the HD. Save to Cmos and reboot with the Win XP disk in the CD drive. If this all works and the disk is loading, do a full format on the disk when it asks you to. You can format it in NTFS which is a little bit more stable than FAT.