My (hopefully working) Contribution

Sorry I haven't been much help, I'm not too good at coding and I have
had hardly any time in the past two weeks.  I wish I had time/knew more.

The GUI should be up to snuff
-the mosaicclick function has an incomplete picturing scaling attribute,
you may have to change how I determine the scaling of the base image
Added code for FillerBank member function BestImage
- Unable to figure out how to declare a LinkListIterator, but if that's
solved the code should work fine.

*Whew*  Hopefully it should be rather quick to finish, I couldn't
bug-test the mosaic making but the logic for it seems to be good
(although I am tired at this point).

Again, sorry about my lack of help.  See you tomorrow.