I'm using Joomla 1.5, and I followed the directions, going to Extensions>Install/Uninstall section. Selecting Install and installing the zip file of ...0.4_j15 . I get a confirmation that I installed it but when I go to the Plugin Manager to activate it there is nothing there. It goes from Search - Newsfeeds to System - Debug. There's obviously something I'm missing. Any help would be greatly appreciated.

Can you check if the folders inside your server have the appropriate permissions? Do you see the plugin inside the plugin folder at the root of your site?

That's what I get for working too late at night. I was expecting it to be alphabetical in the plug-in menu and instead it was between the letters a and c. D'oh! So sorry. I feel super lame! Thanks so much for your help. (I spent sooo long looking at the forums too for answers!) :-[