The BIOS utility is a hardware configuration program built into your computer’s BIOS.
Your computer is already properly configured and optimized, and you do not need to run this utility. However, if you encounter configuration problems, you may need to run it.
To activate the BIOS utility, press <F2> during the POST; while the notebook PC logo is being displayed.
The new BIOS v1.08 enables the SATA disk to work like IDE.
http://support.acer-euro.com/drivers/notebook/ex_5210.html
Upgrade it under windows, then go to BIOS>Main>SATA Mode (change to IDE Mode)
Now you can instal WinXP.
NOTE : If you cannot click on the link , please copy it and paste to your browser address
Thanks and best regards !