I'm not having any issues with the autologin, but then again, my passwords are stored. I actually like the new logo, but if you wanted it to rotate, that's really easy to do (I've done it myself). You simply get a little script called rotate.php, put it in a folder with all the images and then instead of linking directly…
After looking for 15 minutes for the solution I asked the vBulletin forums for some help and this isn't possible to do without some custom scripting. I'd like this feature added so we'll see what we can do, just don't expect it in a timely manner. Great find Per, thank you :)