Comment on massplumber2008's post
Good Morning,
I just wanted to thank you again for your help. I got the copper and PVC pipe connected - I started with your instructions and cut all but 2 inches off the copper pipe. The shielded clamp was too tall, so I about an inch off the PVC side & I cut the PVC drain neck down. It was still about 2 inches too tall. I went back to home depot and by now the shower drain neck is ruined. The salesperson said that the only solution he had was for me to force the PVC over the copper pipe and seal it. Well I pinched at the copper pipe until the end of the pipe fit into the PVC (dry fitted) then I cleaned the PVC and with PVC glue and silicone around the sides; and again once the original glue had a chance to dry. It does not look pretty but so far there are no visible leaks. I am about do a balloon test in the drain to check for leaking. I've created more problems because in a rush to get the base down I forgot to use a base of thinset to hold the base down -