Blog redirects when SEF is enabled

Just purchased my second copy of SEF advanced for my website bit.ly/aM1kqe   When I click the main menu item “blog” the site redirects to the home page.  I have made no changes to .htaccess since the inception of this site so I’m not sure what’s up here.

I can't see your site, it requires a password. Besides, it's hard to see what's wrong without admin password so I can see your settings.

site is no longer pass protected.  user details just sent via email.

cheers,
luke