I recently removed that Tofu Blog theme example from my drop box… hmm, I don’t think I have a backup of it anywhere. But I do have this example of a fade transition you could work from.
I haven’t had a chance to look at the code on your site, as I have to run here in a minute. But if you are still having trouble, I’ll look at it again later.
Edit: Updated the demo, since it appears that the jQuery (edge) version is causing some errors and preventing the demo from working.