We’ve missed you all. We have some great news! We are about to release the events calendar 2.0 and are working on an upgrade to this plugin. We will be releasing an eventbrite tickets add-on late october to replace this plugin. The add-on will work with the open source events calendar and will not require any other purchases. The updated eventbrite tickets plugin will be a paid add-on (although not much). That will allow us to support it and continue to improve it.
For more information, check out http://tribe.pro over the next couple weeks. If you want to be in the beta or are looking for a discount when it comes out, join the mailing list at the top (or bottom next week) of the page.