For models with HM55 chipset:
You need to slipstream Sata drivers (only PCHM SATA AHCI Controller 4 Port) with nLite.
Your drivers are here :
Code:
http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&ProductID=2991&DwnldID=17883&strOSs=All&OSFullName=All%20Operating%20Systems&lang=eng
Rest follow the method posted earlier. or download this file...it contains complete URL and driver information for the hm55 chipset.
Code:
http://rapidshare.com/files/392426006/How_to_slipstream_Intel_Sata__PCHM_4_Port__drivers_with_XP.doc
Yes, you can check the manufacture site and look for same models which supports XP or use driverguide.com or other sites tht will be able to provide all the drivers for your laptop suppporting XP.
You would certainly able to use core i3 processor power to the fullest. If your system conf has 4gb+ ram.use 64 bit windows XP.