Vanilla 1 is no longer supported or maintained. If you need a copy, you can get it here
I just added an extension that will display a flash clock in the side panel. I found this in the WordPress plugins repository while searching for one for my blog. The extension has two clocks, one small and one large. The small one is just a clock. The large one is not only a clock but also a calendar. I set this as the default one in the php script because I thought it would be more useful to the majority of users. You can check it out at my forum
to see a working version.