I went searching for the source to the original Multibox software I wrote (way back in the day) and noticed that there were a few people online who were also looking for it. I eventually found it on my computer so I thought I would post it online "officially" and give it an official license, in case there was any confusion.

This is the Google code page for it and it's been given a new BSD license (which means you can do just about anything with it). If anyone is interested in updating the original Multibox with any changes or additions feel free to contact me and I would be happy to add you as a project member so you can commit there.
http://code.google.com/p/multibox/