To give someone admin access to your Fan Pages please follow these 3 simple steps:
1. Sign into Facebook and navigate to the Fan Page you want to give access to - and then click the settings button.
2.Click the 'Page Roles' section as shown below:
3. In the space provided enter the Facebook name of the person you want to add as an admin (they will only show up properly if you're already friends on Facebook) - Alternatively you can add in their email address.Then set their role to 'admin' from the drop down menu and click the 'Save' button to apply.
That's It! They now have access to Post and Publish to your Facebook Fan Page.