http://jabberd.jabberstudio.org/2/docs/quickstart.html
If you are not specific about ejabberd, but simply want to run a Jabber server, then follow the instructions in the above link to configure Jabberd2. It worked for me on Fedora Core 5 i386. If you are using an RPM to install Jabberd2 then you will find that most of the instructions can be skipped.
Good luck, Debarshi