Problem after logging into my website

Message # 1 | 8:28 AM 2014-08-21

Hi,

My website:

http://ausbdm.ucoz.org/

I am aware of the two log in types- however, once I am logged into my page- I can delete and re upload files from File Manager, but when I go to Page Management I canot edit this page and the following appears:

Entries are managed through the site.
You should log in to the site as a user of Administrators group (or any other group, the users of which are allowed to edit entries).

"The Control Panel password differs from the user-administrator's password.
If you don't know the Administrator's password, create a new user with the respective permissions (Control Panel - Users - Add new user).

Login form for administrators works even if "Users" feature is disabled."

I guess I am logged into Control Panel with that password, but now not sure how to log into user-administrator.

I am the only administrator and I do know both of the passwords required.

Hoping this is clear enough to follow and that some one may be able to assist me please??

Kind Regards