Same problem for me. I’m able to write on my wall and also to the fan page.
This is what I get visiting “click here to grant WPBook the permission to publish to your stream”
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This page is where you can check and grant extended permissions, which enable WPBook to publish to your personal wall and/or to the walls of fan pages.
Your userid is 6XXXXXXX1
You will need to enter that number into the WPBook settings page on your WordPress install.
Click here to grant permissions for your userid. (This is required if you intend to publish to your personal wall OR any fan pages.)
You are also listed as the admin of these pages:
* PAGENAME (1XXXXXXXXXXX2), This page has granted stream.publish permissions to this app.
If you are the administrator of pages which do not show up in this list, you need to ensure you have added the application to the pages first.
Follow the detailed directions included with the plugin.
