I have been running 2.0.5 for 2+ years with no trouble but my copy has been heavily modified so I was not able to export any of the data other than via SQL export directly from the database.
I am currently switching servers so I thought it would be a good time to upgrade to 2.6 and everything seemed to be going well with the SQL insert but out of my 535 posts WordPress only sees 331 and nothing past 11/06/2007 even though the posts are in the database.
All of the comments are there and show up in the dashboard, but the posts are not seen. I am able to add new posts, and have tried changing my permalink options, but no luck.
The only thing that changed back around 11/06/2007 was that I changed my category structure and recategorized all of my posts. Could this be causing the problem I'm seeing and what could I do to fix it?