I have some videos on deploying to web logic. They are for testing purposes, but might help search for "weblogic" on this page http://www.youtube.com/playlist?list=PLE9A3CFFD4510ADA0
Generally the way it works is you have a weblogic admin server and you have an enterprise management server running on that. The Enterprise management server is where you deploy your applications to.
In testing (and in the videos) I just deployed to the admin server.