First xp won't dual boot correctly against 7 if 7 was installed first.
Also why do you need to change from the SATA to IDE, if they are SATA drives what would be the point in this. As for Nlite, you need to make sure you have the correct drivers for the HP machine for XP. You have to build up Nlite correctly with the correct set of drivers, I had this problem when I took Vista off a HP laptop and couldn't install XP due to the SATA drivers, though found the correct ones in the end.
Are you a plank or what, you can't dual boot from vista or 7 without having to recover the boot loader first. As it's the boot loader that tells it what to boot, so if vista or 7 is the main OS then it boots from that first and ignores the XP version and doesn't give you the choice to dual boot. You fix the boot loader and hay presto you can dual boot from XP into Vista or 7, you still have to use fancy software to repair the boot loader, were as if you partition the HDD and install XP on one section and then Vista/7 on the other, you now have dual boot without having to use any fancy bit of software to do it for you.Funny I never had a problem dual booting with Windows 7 installed first, with EasyBCD they recover the bootloader which is what Vista and Windows 7 use.
See here:
http://neosmart.net/wiki/display/EBCD/Recovering+the+Vista+Bootloader+with+EasyBCD
Are you a plank or what, you can't dual boot from vista or 7 without having to recover the boot loader first. As it's the boot loader that tells it what to boot, so if vista or 7 is the main OS then it boots from that first and ignores the XP version and doesn't give you the choice to dual boot. You fix the boot loader and hay presto you can dual boot from XP into Vista or 7, you still have to use fancy software to repair the boot loader, were as if you partition the HDD and install XP on one section and then Vista/7 on the other, you now have dual boot without having to use any fancy bit of software to do it for you.
It's called Old Skool
