About the template coolness / mycommunity

Hi
I have some 'issues' with the template coolness (and mycommunity also) i installed.
When we assigned it as template in Template Style after creating a menu, The template works as a standalone template, that means, it takes the user outside the main website, Is it correct? That's not nice at all!
I read somewhere we must install it via the plugin manager, what it s impossible. It must be done like a normal joomla extension
May you help to fix it?
I spent my day, reading the forum without finding an answer.

Please help

Without the template, CB works like a charm.
NB: the target for the menu has been set to parent.

Coolness, MyCommunity, etc.. do not come with CB templates anymore. They're strictly Joomla templates. They're installed through Joomlas extension manager and enabled through Joomlas template manager.