The site you are asking about does not seem to be hosted on WordPress.COM so you need to make friends over at WordPress.ORG the keepers of the software you are using.
This site is for support of sites hosted on WordPress.COM. You should address your questions to WordPress.ORG the keepers of the software you are using: http://wordpress.org/support/
The forum at WordPress.ORG is not connected to WordPress.COM so you will need to open an account at .ORG if you do not already have one. You may use the same email at WordPress.ORG as you do at WordPress.COM.
For more on the difference: http://support.wordpress.com/com-vs-org/
If you are asking for help with a WordPress.COM site then we need a link to that site to give you accurate help.