The latest stable release of Vanilla (version 1.1.10) is available in ZIP format below. If you have no idea what to do with this download, we recommend getting an account at VanillaForums.com and letting us take care of that stuff for you.
Check out our guide to installing Vanilla and you'll be up and running in no time. If you're upgrading from an older installation of Vanilla, we've got instructions for that, too. If you run into any issues while getting set up, visit our forums where our active and friendly community of users and developers volunteer their time to help you out.
If you're looking for Vanilla 2, you can get the most recent development version from our repository at GitHub.