Tentatively, I'm declaring victory over the "HTTP 500 - Internal Server Errors" everyone has come to know and love. I know, I'll be sad to see them go too.
The actual problem, and the steps it took to find it, are in my latest blog post: http://www.bailopan.net/blog/?p=855
I'm going to continue to monitor for website problems over the next few weeks.
Note that major portions of our site are still down, for example, the bug tracker. As mentioned in the last post, we didn't have full backups, so I'm waiting for a professional recovery service to try and restore our data. Hopefully it won't be much longer, they claim to be wrapping up.
Once I know more, I'll post again about the recovery progress and future plans. I really appreciate everyone's patience and generosity. Thanks for your support!