Thank you for replying. I got frustrated and took a break for a while, now I am back. I think part of my problem is the Quicktime movies from my Iphone. I will have to convert them to use them. I don't remember what I need to convert them to in order to use them. The I am using Roxio VideoWave from Easy Media Creator 10.
The movies I made a few years ago play just fine on my AppleTV, I just don't remember how I rendered them.
As for how I moved them into ITunes, I did it the same way I add movies when I buy them. I move them off my desktop by trackpad into the ITunes Movie library.
I can't believe how much I have forgotten! Going between PC and Mac is very confusing. I wish my son had never talked me into the Mac!