Hi Brian,
It looks like our plugins should work with that theme (although I’ve never tested that myself). For a registration form, that doesn’t require any money to be exchanged, I might suggest our new EDD Tickets add-on. You can set up tickets for the event, set the price to “Free”, and they should not be asked for any payment information. You will still get a list of who has registered and be able to set a limit on the number of tickets sold if that’s needed.
The one thing that might not be exactly as you asked is address. If you were referring to an email address, that’s no problem. The information gathered for each ticket includes the buyer’s name and email. However, if you were looking to collect a physical address, that is not something the plugin does. And if you were interested in doing that it would likely require customization, but that would be of the Easy Digital Downloads plugin, not The Events Calendar plugin.
I hope that answers your questions. Please let me know if it did not.
— Julie