It makes use of the classic "attraction-repulsion" algorithm for graphs. Start exploring your contacts by entering your flickr 'username' or the 'email address'. For those of you who dont have a flickr ID but want to explore this piece, try using my friend's ID: 'subhasish'.
ASCBLibrary is a library of ActionScript 2.0 classes that you may find useful in various projects. It's now a public beta.
You can also read an article Joey Lott wrote at CommunityMX that describes how to use the logging package.
Additionally there's a mailing list specific to ASCBLibrary. Note that there's not too much documentation, and the examples are sparse.