Nginx & Wordpress

Hello!

I'm having a hard time with nginx & wordpress. Specifically I installed/configured WP on http://www.busybabybook.com/blog/ and all seems to be ok EXCEPT for the fact that in the wp-admin/ I can't see: Media, Posts return an "Invalid post type", there are no Pages (but in fact I have 2: Contact and About).

Also, i would like to redirect www.busybabybook.com to www.busybabybook.com/blog/ but i've got no idea how to make this work without any problems in nginx.

This is my vhost:
http://pastebin.com/ugvLMQYd

Thank you in advance for helping out!
Regards,
Alex