can't get suckerfish to work at all...

Tried 6.x-1.5 and now trying simply_modern-6.x-3.1 with Drupal 6.19

So in the 1.5 version, I turn on the suckerfish menus via Theme settings checkbox in Administration... this turns on simply_modern_suckerfish theme setting which page.tpl.php looks at, but page.tpl.php also looks at a $suckerfish variable before that, that i dont know how that gets set. All my Primary Links are Expanded and I put the Primary Link block is in the Header region. I had to turn off primary links in the Theme or else it shows up twice (above search bar and in header.... This is a tip i saw in another Issue). Anyway the $suckerfish var never gets set...

So i switched to 3.1 hoping that it would work better...

I see in the suckerfish.js file:
var sfEls = document.getElementById("suckerfishmenu").getElementsByTagName("LI");
How does #suckerfishmenu get applied to the menu(s)? I grep-ed that theme directory and its only referenced in here.
I thought maybe I have to change the suckerfish.js file so it points to element i want to have suckerfish menus so i used primary-links to no avail. PS there is no 'Use Suckerfish' in this version (Just a 'Zen Tabs').
Not sure i just enabled that. there is no README.txt for this version.
I have all my menu links expanded and suckerfish isn't working in this version either

I was just curious what steps needed to get this working?