As a Solution Pack, the license offered was for 1 Domain. This was the version you purchased, and the license you agreed to at the time of purchase.
Power CMS Builder, the Extension, was not available at that time.
I see in your order history you have previously purchased Super Suite, this would mean you have an upgrade option to purchase Design Extender (Which includes Power CMS Builder with it's unlimited domain license) for $99.99
I have also purchased the super suite, had to move up to the extended for cs6. not aware that one license for pwr mngmnt. Whats the deal? Also would like to deactivate a site from my list. How is that done? What need I do now? Thanks Ken