First, you can't revive Aeris. Period. I don't care what anyone says, I've heard it all before. You can cheat with Jenova or whatever to get her back in your party like what you're doing, but that's it. I don't know about Jenova, but you can use Cid to put Aeris on the PHS screen.The following two sites contain K. Megura's Final Fantasy VII changes FAQ. Take your pick.
http://www.gamefaqs.com/
http://www.ff7gold.cjb.net/
[This message has been edited by Srethron Askvelhtnod (edited January 24, 2001).]