how to apply the AOL patch?

I tried cat | patch -p0 but it would not work. What's the proper way?

where is checkpassword and ucspi-tcp?

I am in the process of getting a pop3d working on my box. I've been trying to get checkpassword and ucspi-tcp from the sites listed on qmail.org but they're dead. Is there an alternative place I can get these packages from? Denis