A forum for, well, anything really.
Gripes, moans, ideas or just general chit chat. EXCEPT SPAM!!! - Don't just register to post here - IT WILL GET DELETED!!!
If the menu is going to reside on one domain, e.g., http://www.site.gov, then it sounds like the Pro license would do just fine. The free version is not for government use.
Once you've purchased the menu you will receive your license information immediately. You will not need to input the license information manually, just download the sample you require and the system will include the details in the files.