Uninstalled Xmarks extension for Chrome, how do I redownload it?

Hey, I was picked to beta test (or rather, alpha test) the new Xmarks extension for Chrome. I was using it, with the Dev Channel of Chrome, for a month or so.

But recently, I rebuilt my system (man, was it slow!), so obviously, the Xmarks extension disappeared, along with the Dev Channel of Chrome. I can't find out how to download the extension again, and I could find the Dev Channel of Chrome, but a direct link would be nice.

So, please, help me out and get me back into testing Xmarks for Chrome (which is really cool and works great so far).

Thanks,
Adam