As Windows XP is obsolete and approaching its end of life, see Windows XP SP3 and Office 2003 - End of Life April 2014.
I would advise installation of Windows 7 64 bit see Windows Reinstallation Guide/A Clean Install of Windows 7:
http://philipyip.wordpress.com/dell-community-forums/
To evaluate use the Digital River .iso and don't enter the product key to enable the 30 day trial.
Use the following drivers: