This is a really nice app, thanks very much for sharing.
One suggestion would be to have an optional tile view of the user list (/vbimghost.php?do=userlist) AND that a click takes you to the user's profile.
This would make it a lot like myspace and other social networking sites.
Here's an
example of what I mean.
In my 'vision' it could (optionally) have one image per user that the user could select as their default display image.
This isn't a very clean view but it gets the point across. This seems to allow as many as a user has which is good for some systems but I am after something more user centric in this view. In other words optionally one photo per user.
And again, thanks for sharing your work.
peace . . .