Hi,
i am just starting to build a site
wordpress 3
thesis 1.7
i’d like to use this multi level nav plugin
so… i downloaded it, unzipped it, put it in the thesis plugin folder and activated it
and now i am Stuck 
i read something about auto assign theme or something but i cant find that
i tried to copy the php line to themes/thesis_17/thesis_17/lib/html/header.php
but all i got was a line of code and i couldn’t access the site until i removed it from header.php
what do i have to do to get this working…. anyone??