Double check and make sure you are entering in the right serial numbers.
As if you type one digit wrong it wont allow you to continue.
If you are sure that you are entering in the right serial numbers and it still wont let you contiue. Then I would say your serial number is wrong and you will...
Hello Lairdpg, you should be able to get the correct video card drivers from the following website.
http://www.nvidia.com/object/winxp_2k_93.71.html
Don't worry about specific driver for your video card as this package will support your video card along with many others as shown here...