Well, as I promised, here is the source code for the Fish Race gametype. This code contains all of the basic gameplay logic I'm using for that level. I'll try and do that with each of the levels once they get to a fully playable point.
I'm not sure how much use this class is without all the other architecture classes that it works with, but it might be helpful just to get a feel for how I am structuring things.
[Note: I was getting annoyed at how much this code being displayed was throwing off the width of the rest of my posts so I've just provided a download link to the file for those that are interested]
Zipped Fish Race.vb File
So there you have it. My code in all it's naked glory. Enjoy. Now I guess I'd better get started on another level before the deadline comes and goes.