sorry, just not understanding… when you install sp, it will use the prefix defined in the wp config file…

were you upgrading or installing? if you already had the forum in place, and then changed you prefix and tried and did not change the forum tables too, then you upgraded, it probably said it was a fresh install…

bottom line, sp uses the prefix defined in wp config…

I was upgrading. I did not change my prefix at that time (only when I first set up my website). My old forum tables were created with the custom prefix. But when I upgraded, new tables were created with just a wp prefix. 

Sorry if that’s not making sense. I tried to upload a screen shot, but after about a dozen tries, gave up. 

Can I give someone access to take a look-see behind the scenes with me? I could do some screen sharing, if you’re avail?

Which new tables please?

SP uses whatever is returned by the $wpdb->prefix property which is itself gleaned from the setting in the wp-config.php file. And I can guarantee you we would in no way assume a ‘wp_’ prefix either.