how to cross refrence all filters

one of the biggest things i see is no one can find a cross refrence on there filters here you go..

Go to this site and find your tractor and then go to filtration, it will give you numbers that it uses to crossrefrence over to its filters, take those numbers and go to any major brand cross refrence site and you can find your filter for the major brands like fram, ac delco ect....
http://www.vapormatic.com/drilldown/default.asp?prmTitle=Search%20by%20tractor&prmPageDetail=02&prmByPassModels=False&prmcutdown=False&prmSource=01&prmAreaId=0&prmMajorId=0&prmMachineId=0[/]
just wanted to help!!!!!

One other thing, if any one has a Zetor 3320 repair and/or Parts book on PDF could i get you to email it to me, thank you!!!
And if you need a generic parts book i have a site for that too, just contact me and let me know.
earl.shaw@us.army.mil