To reset the Mac OS X block chain:
In Finder "Go to" ~/Library/Application Support and remove the Vanillacoin folder.
I am uploading new builds now. Please delete your old blockchain to prevent a crash.
Thank you for your support.
Ok thanks.
For whatever reason that folder doesn't exist on my computer even though I already ran the old Vanillacoin client.
Since that folder isn't there I should just try running the new one and hope for the best I guess?