Dear Stephen,
thank you for your efforts. I am a magento newbie, and need help!

Point 1.) see access Info
Point 2.) no custom – it is also on your demo site (Demo #2 / Boxed layout)
Point 3.) could you help me in this case?
Point 4.) Is it possible to deactivate it only on main/home site?
Point 5.) could you help me in this case?
Point 6.) OK
Point 7.) could you help me in this case?
Point 8.) could you help me in this case?

Thank you very much for your help in advance!

Best Regards
Lemminger