adding Event Management (issues, problems, frustrations)

We are a small company (5 total employees) that plan on doing 1-2 free webinars a week for 40-100 people (these are different every time, researchers who sign up for the webinar that would be advertised on our site and others.

When we tried out Adobe Connect we loved the web conference interface and features... and the event management. We needed a way to have people register for a specific webinar with a login to get to the meeting, manage their registrations (unregister), send them reminders, updates, etc. Event management look great.

We signed up and event management was gone, making the service not useful.

The Adobe Connect site is extremely poorly set up. We saw no indication whatsoever that event management was NOT part of the hosted service once we signed up. In the sign up process there was no indication whatsoever that event management was a third party add-on we had to buy separately. It's confusing and frustrating.

When we called to see what the issue was (3 times now), they explained it was a third party add-on we had to purchase separately. Even after showing us where that was indicated, it wasn't at all clear.

Anyway, we need some simple registration/event management. The only third party customer service will direct us too is much much too expensive. Are there other add-ons, third parties, possible solutions to adding registration to webinars that isn't going to break the bank?