Transferring member data from phpfox database into wordpress multisite + BuddyPress + membership plu

Hi,

I wrote a script that would loop through phpfox database and grab all of the user data I need to import into my multi-network wordpress site. I can get the data dumped into it no problem but it seems I cant get the users I transfered over to register with the members plugin or with a specific site. Any suggestions of what tables and columns I should edit?