Vanilla 1 is no longer supported or maintained. If you need a copy, you can get it here
Current version is 2.1.11
, released 12 June.
Delicious.com support forum made with Vanilla!
Just to let you know that I found the new Delicious support forum is made with Vanilla (and the login is integrated with the Delicious' one).
What a good news! :-)
(and a lot of exposure for Vanilla)