TweetPress stopped working, renders a blank page

I set up TweetPress a few days ago and it was working perfectly fine. I could post images from my WordPress site and use external clients. Images appeared in the WordPress page I specified, and things were great.

Originally, WordPress was installed in the root of my site, but sometime after installing TweetPress, I followed the WordPress support instructions on moving my files to a subdirectory (/wp/) but allowing it to run as the root of my site.

TweetPress no longer works, it renders a blank page no matter which of my WordPress pages I point it at. Right now it’s at http://davebc.com/photos/mobile-photos, but if I point TweetPress at /photos, that page will render blank, and mobile-photos will display my WordPress site with no content. I should note that while I have since upgraded to WordPress 2.8.5, this all happened on 2.8.4. It was originally working, and broke while I was still on 2.8.4.

I’ve tried uninstalling the plugin, and manually editing my WordPress MySQL database to remove its table of settings. When I reinstall TweetPress, all of my old settings are automatically filled in, making me wonder where they are actually stored, and how to go about a true uninstall to start completely fresh.

I suspect it was the WordPress move I did that caused TweetPress to break, but I can’t think of any other solutions. Anyone got ideas? Where else should I look for these TweetPress settings to truly wipe my installation free? Thanks a bunch.