Rijndael Algorithm

This is a cross post, but I figured that the maths guys might know it.

Does anyone know the Rijndael algorithm such that they can explain it, or perhaps a link to a good diagrammatic explanation of the Rijndael Algo?

Thanks.

Try this link to start with:
http://www.esat.kuleuven.ac.be/~rijmen/rijndael/
... good luck...