We come out with new releases periodically with new features, or updates for compatibility with changes in Facebook. The last release, v3.2.2, came out on Friday June 3rd. Once a new release is available, we disable access to old releases to avoid obvious confusion.
Though it's something we've considered, we currently don't have a pay service for installation. Our installation and upgrade guides can be found at the link below:
www.sourcecoast.com/jfbconnect/docs
The account you're currently posting from is not the account you subscribed from. If it was, then under the "Active Subscriptions" text under you image would be a blue bubble with FB in it. If you did subscribe under a different account, feel free to post to this thread from that account, and we can add your subscription to both accounts so you don't have to fumble with multiple accounts going forward.
Hope that helps,
Alex