Hi, you should always install the Chipset Drivers first....all available driver and software downloads are available here......uninstall the drivers that are failing to work, and install/reinstall the Chipset drivers. Then install the others.
http://www-307.ibm.com/pc/support/si...cid=MIGR-55386
When you say the old operating system was "Windows Professional", what version of Windows are you referring to? Windows 2000?
What version of XP are you using? XP Home Edition, XP Music Centre Edition or XP Professional?
Do you have XP Service Pack 2 installed? If not, it's available for download from numerous places online.