to install xp in any machine that has an intel chipset be it hp, dell or whatever is relatively easy ....the solution is found here
go to http://downloadcenter.intel.com/ and in the search textbox type "32-bit Floppy Configuration Utility
" then download it.
extract the content of that zipped file that is called f6flpy3287.zip .
then click on this site http://www.tacktech.com/download.cfm?file=microsoft/sata/sata-drivers.zip....here you get all the drivers for sata intel chipsets ....The content of this zipped file is similar to that of f6flpy3287.zip but its advisable you use f6flpy3287.zip contents to slipstream.
secondly download a software called winlite from http://www.nliteos.com/download.html ...its a freeware
then follow this site
Altenatively ....for the ... advanced users