Tweaking the Secondary Menu

Hi,

I've just switched from a previous version of the Omega theme to the recent one with the zones and regions and am struggling a bit.

I've got a main menu with sublinks (depth of 2) and want to display the top level of the navigation at the top of the page and the sub-links of the active trail only in the sidebar. (See attached mockup)

Could you please tell me how I can accomplish this? So far, I've set the Main Menu as source for the Secondary Links, but that's about it.

Thanks,
Tina