UDK and Unreal Engine 4

hey guys, I bought a tutorial set using UDK for particles cascade, the guy gave some project files to help out some of the files are .upk and .udk . from what I understand these packages are no longer supported in the new Unreal Engine 4 systems. I am trying to get UDK so I can follow along without having to improvise everything he is doing. whenever I try to download UDK it gives me a error 404 page missing for downloading the newest version. UDN | WebHome any help guys would be greatly appreciated and I apologize for my bad english…

Savagebeasty helped me out with link to file!! thank you again!!