TB Sirate with "Menu attach block" module

Hi!

In the TB Sirate Demo Page you have this very lovely login form in the dropdown menu. I have tried to get this running with the module "Menu attach block", but it seems not to do what I want. My first question is: Do use this module too for the demo site? Or what else?
If yes, here is my problem: The Login form is not shown in the drop down menu, and when I enter "block" (in <> brackets) to the path field, it is not correct implemented. The menu tries to open a page "block" and Drupal tells me that this page doesn't exists (what is correct...).
Maybe you have some useful hints for me, thanks!
Regards
Dennis