If you are trying to set up e-mail for use with your AOL e-mail account then you will have to use the server settings for that AOL account. It sounds as though you have some googlemail.com settings in there right now.

A google search for "AOL email settings" gives this page with the IMAP and SMTP server information:

http://members.aol.com/adamkb/aol/mailfaq/imap/

You'll need to use this information (including the port numbers given) in your settings.