Developing PHP Jabber Client

I've been using Jabber and Trillian for a couple years now to keep all my IM buddy lists in one place.

I'm bout to add an instant messenger and a chat room to my site. Basing them on jabber seems to be the most cost effective op tion.

I'm still learning about the server itself, the class for connecting php with jabber, and methods for developing chat and IM clients.

http://www.jabber.org/
http://phpjabber.g-blog.net/HomePage
http://forum.glue.g-blog.net/
http://webmessenger.sourceforge.net
http://webmessenger.sourceforge.net/forums/

I think I'll need some help during the development process.

I guess I forgot to mention a few things about the project.

1. I want it to be a web messenger, not a downloadable PHP client.
2. I would like to customize the files that go with the web messenger to use my current database rather than creating a new one for the messenger.

3. I want it to be fully intergrated into my site. I don't want the registration or login for my site to be seperate from that of the messenger. Actually I want to remove the registration process for the messenger all together. If they are logged into to my site, I just want it to log them into the messenger when they first try to open the instant messenger. IF they are not logged into my site, I want it to open a login page that will log in to both the IM and the site.

The basic files for the instant messenger are already created. They basically just need to be customized.