I'm almost there. I installed the Kickapps drupal integration module, and all seems well. When users register on my site, they are registered at kickapps. Kickapps sign-on, etc. links back to my site, as promissed.
However: I don't understand how to set up my drupal menus to append the proper session data.
What I tried at first was just to pull the urls from my kickapps pages, for, e.g., discussion boards. Then I dumped that url into my menu item path. Obviously, that didn't work.
So... what's the right way?