Check that your Connection Profile settings are as described below.
To publish to AOL's server, you need to enter the following settings in the Connection Profile screen:
Hostname or IP address: members.aol.com
User identifier: anonymous
User password: email@example.com
Initial remote folder: /screenname
WWW site address: http://members.aol.com/~screenname
Primary page: index.htm
With all the above settings, replace "screenname" with your AOL screen name.
Also, please ensure that your screen name is rated that of an adult, as opposed to a child, or you will not be able to publish your site.