Problems with Edublog Theme and Membership Plugin

I've been having terrible problems with the menu's in the Edu-Blog theme . Now when I am editing pages the content with an H2 tag will not show up on the site.
I have the current version of Wordpress and the theme.
Do you know if anyone else is having these issues?
Is there another theme you would recommend for a membership site similar to the Edu-Clean site?
The plugin for the membership is also not working at all.
Thank You
Brenda Campbell