You need to give the exact model and type of computer you are trying to get the drivers for.
This is a major issue as some hardware that is specifically made for windows vista has no design for XP drivers. Sometimes the vista driver will work for both operating systems but in most cases no.
Go to dell driver downloads for the computer model # and search the product driver downloads...the name style, brand of hardware should be listed. Once you know what the device name/model is then you will need to google for XP drivers for that device!
Next time don't be in such a hurry without gathering the correct drivers for the system first.Saves a lot of down time afterwards.