I'm having two major issues.
1. Although I'm the one setting up the meeting and I have designated myself as the host, when I click "Enter Meeting," I appear as a participant, with no way that I can tell to change this.
2. I'm trying to determine ways to add people outside of my organization to the invitee list. When I am in the Select Participants list, there's no way to add anyone outside of my organization to this list.
1. You are likely using an account which uses the Named Host license, and you are not a member of the Meeting Host group. So, despite the fact that you can create a meeting as an Admin on the account, you must also be in the Meeting Host group to activate the room's full functionality. Should you not fully understand the Named Host model, Adobe has an FAQ here: http://helpx.adobe.com/adobe-connect/kb/named-host-license-update-faq.html
2. Adding people to the account as registered users is an Admin only function and must be done through Administration > Users and Groups. There is an option to add individuals one at a time, or use a CSV to upload a list of new users. Alternatively, the Events module is intended to allow individuals to create their own accounts and attend events that you make available. However, you can just send people the URL to your room and they can join as a guest, with no need for any account creation.