After I purchased the module I immediately opened a support ticket, and it was responded to within a very short time with a good explanation on what changes needed to be done. A couple of simple changes on a few lines in the module's php file made the trick, and the module now works beautifully on the header of my page.
The support for this component is fast and proffessional.
A highly recommended module!
The access control is using it's own group and category system which makes it flexible and and easy to integrate with the J! user groups as soon as you get hold of how the settings interact. RSjoomla have extensive documentation on their site, so it is easy to get along.
The support is fast and efficient as always with the RS products.