I'll answer your query about the pagefile location.
You need to understand what the pagefile is and why it used to be important.
Originally, when Windows was first developed...hard drives were small and RAM was miniscule and expensive. Computers were pretty straightforward but they were new to the general populace. To make computers attractive, there was a ton of free software which often accompanied a purchase.
Problem was...running all this software (and certain types of software) drained the memory which normally was installed in a system.
So...the pagefile or swap file was devised.
This allowed users with insufficient amounts of RAM installed...to utilize part of the hard drive...for work done normally by the RAM. Very ingenious, right?
Well...the reality today is that any system with an adequate amount of RAM...doesn't utilize the pagefile that much and is certainly not dependent on it...even though it is still created as a RAM security blanket and is a necessary Windows component.
There was a time...when all those persons who said "move your pagefile" may have had a point worth pursuing. But with today's hard drives and today's RAM, I fail to see any reason to be concerned about pagefile location, just as I fail to see any reason for manually adjusting the size. XP seems to do a fine job of handling it.Wiki Article on Pagefile
I think having SATA hard drives and installing the max amount of RAM for a 32-bit O/S such as XP...is a lot more performance-oriented and successful than worrying about the pagefile in a system that has sufficient resources for doing what needs to be done.
It appears that you have 4 SATA slots and 4 RAM slots, per http://support.dell.com/support/edocs/syst...y.htm#wp1112906
The one suggestion that I will make...since you have the capability for making optimal use of Windows 7...think about it as an O/S.