You can upgrade the license you purchased for BirdieSync 1.x to use BirdieSync 2.0-2.3. If you already have a license for BirdieSync 2.0, it is still valid for BirdieSync 2.3, so no need to upgrade your license.
Once registered, you will receive your personal registration key by email.
Thank you for your support !
PayPal is the fastest and easiest method to register. But you may prefer to use an alternative payment method like a bank transfer or Moneybookers service.
Users who registered since the 26th of October 2009, so 3 months before the official release of BirdieSync 2.0 (not the beta), are entitled to a free upgrade.
