What php/mysql versions does impex support?
 

Running into an issue where impex fails the check stating that it can't find certain tables however those tables are present in the database. i'm wondering if my mysql / php versions could be the issue?

Another problem: the impex download has a note stating that we should go to:
http://www.vbulletin.com/docs/html/impex

However that path does not exist. Impex doc appear to have been deleted from the docs system.