Pay to blog - redirect to payment page - modification

Hi guys,

For the payment to blog feature i like the way it redirects you to blog.php in the admin section.

Any chance i can add that to the front page aswell.

i.e. When the admin has logged in to the backend, they can still view the front end of the website.

I need it to do: (Wherever) the admin is trying to access -> redirect to wp-admin/blog.php

Therefore, if they press the cancel button, or update it logs them back out. Basically meaning, they cant access the website but the public can

Reason -> This plugin blocks the admin in the backend, but plugins such as photosmash has an upload button on the frontend to upload images. So they can still use the site