Q&A - Theme adaptation : Top menu conflicts with Q&A navigation

Hello

Great plugin but i am having hard time adapting it to my theme. I am using the responsive Satellite7 from themeforest theme.

After tweaking the parameters in the settings, i can't manage to display in a correct way.

First, the top menu of my theme is overlapping the Q&A navigation.

Secondly, the sidebar is not displaying in the right side like it should but in a zone situated over the footer !

Can you help me and indicate me what corrections should bring to my css ?

The website is actually under construction but i can open the access for few hours.

Please go directly to this link.
http://www.boyzontilt.com/questions/test