Top Nav menu align right

I am trying to get my TopNav menu to align right, over top of my main nav menu. The URL for my dev site is: http://aptpuo.jungle.ca
Here’s a visual of my problem.

There doesn’t seem to be a way to position that menu, like there is for the main menu.

I’ve tried adding float: right; to a bunch of stylesheet declarations but I can’t do it elegantly.

I am looking for advice, suggestions.

Pointing out glaringly obvious omissions is also acceptable.

cmkl