Oooooooooo just a quick warning. Before you go off and encrypt your FB4 files there are two files that must be left as-is. They are:
circuit.xml.cfm
fusebox.xml.cfm
To help combat this i have modified the CFEncode from my previous post, and added an extra field called ExcludeFileList. This defaults to the FB files, but you can add any other pages you want excluded. To get it goto andyjarrett.co.uk/downloads/encode_file_exclude.rar