The key fob I got with the truck doesnt work.. new battery.. still nothing..

I've found a couple on Ebay and other places.. and there's a local guy that sells them used, but I need to know how to program these to work with my truck.. I've found the programming sequence for 99-06 but that doesnt help me much.. since mine is a 97

I can't be the first person with this problem, anyone have any help/info/tips on how-to or where to find the information.. Thanks for all your help..