I can't change Avatar and edit About me

Hi Admin,
I installed CjBlog on my new web site but when I click to change the Avatar nothing happen same when I want to change About Me section.
And another thing is when i go to Categories tab and select some category I can't see the articles.

This is my website http://miclubamerica.info

You can log in with :
Username: user
Password: user

Regards,
Dragi.