The test is working well enough at MessengerMods that I’m going to slowly begin opening it up to a larger audience. Of course, there’s nothing stopping you from going there now, but I haven’t done anything to really publicize it yet. I’d like to get a bit more content in there to see the site first. I’m also still working on the layout. Yes, there will be some form of advertising in there, but I’ll try to keep it as non-invasive as possible (i.e. Google AdSense).
The good news is that 4images Gallery is a champ! Very full-featured, very easy to install and run, and very easy to modify. I still have some things to learn about it, like creating different sized thumbnails for emoticons versus display pics, but I’m ready to say this package is the one. Highly recommended!