As highlighted in the 0.2.2.1-alpha release notes, the Vidalia Bundle for OS X includes some major changes. Many of these are for ease of use and user experience improvements. The release of OS X 10.6 (Snow Leopard) gave me a fine excuse to release the improvements.
It's best to un-install Tor/Vidalia and then install this new bundle; rather than upgrade. If you want to upgrade, you'll need to update the paths for Tor and Polipo in the Vidalia Settings window. There has been a lot of testing since this test release of the drag and drop installer for OS X in January. The main goal was to make installation far easier, less error prone, and keep all of the bundle in a single directory for easier configuration and un-installation. I also posted this to teh blog at https://blog.torproject.org/blog/major-changes-os-x-vidalia-bundle-0221alpha -- Andrew Lewman The Tor Project pgp 0x31B0974B Website: https://torproject.org/ Blog: https://blog.torproject.org/ Identi.ca: torproject