Just wanted to report that I successfully moved my minibb forum to another server/web host. It all went very well, all the problems I had were because of my own dumb mistakes.
Only thing I want to mention, in case people run into it, is that it is sometimes difficult to transfer a large MySQL database. Had to split it up into pieces, and even then, the posts database was too large to tranfer via PHPMysqlAdmin.
If you run into this, you can use
Big Dump. It's a great little utility/script that got the job done for me. Just thought I'd mention it in case other folks ever have this problem.