We just released the first feature update for ImageBuffet. Yeah, it's been a long time, but we really couldn't think of anything we wanted to add.
The main thing is the Search box, which you can use to filter images by file name. This is also handy for filtering by a particular format of image (search for "gif", for example). You can also now sort by Date Added, which is pretty cool for looking at recent images.
There's a bunch of minor UI tweaks and enhancements, too.