I found the sql script that creates the database. Here are my specific questions

In table 'mlf2_entries' I assume:

pid = parent id, the id of the parent post with 0 indicating this post is the top of the thread. Correct?

tid = thread id? How is this generated since it doesn't auto increment?

uniqid = ?? This is a varchar string. What does it mean? How is it generated?

hp =?? What is this entry for?

Also, can someone point me to the php file that actually processes a post and enters it into the the db?

Thanks!

JP