Have you checked your Boot sequence in the bios to make sure you are set for:
CDRom - 1st
Floppy - 2nd (if you have one)
Hard Drive - 3rd
Then, make sure your Hard DRive priority in that same area has the hard drive set first.
Note: With XP, you will either need a floppy, or you will have to slipstream a copy of the Sata drivers in to your OS Disk.
How-To-Slipstream-Your-XP-Installation
CDRom - 1st
Floppy - 2nd (if you have one)
Hard Drive - 3rd
Then, make sure your Hard DRive priority in that same area has the hard drive set first.
Note: With XP, you will either need a floppy, or you will have to slipstream a copy of the Sata drivers in to your OS Disk.
How-To-Slipstream-Your-XP-Installation