A Brief Tutorial using water molecules to get started
Another Tutorial using butane molecules. This introduces Gnuplot and VMD.
A tutorial , from Roland Stote, Annick Dejaegere, etc.
Preparation of Protein system from initial pdb file
An introduction to CHARMM data structures, etc, , by Krzysztov Kuczera
The documentations for the other versions are available in the Charlie Brooks homepage