My b2evolution Version: Not Entered

Hello Bloggers

i am using the skin evopress and i want include a html site in my blog. It should be linked to the "Über uns" in the menu at the top of the site. My problem is that the site should be shown in the part of the site which usually displays the posts. it would be perfect when the sidebar is not shown.

Her is an example like it should look like
http://demo.b2evolution.net/stable/blogs/blog1.php/2008/04/19/about-blog-a

here you can see my blog
www.antifa-wasserburg.de

thanks for help
leo