Is there any way to change the default banned user message "You are currently banned from using this site." Where do I go to do that? Please advise. Thanks.
For a quick change - find the message in the appropriate language file (start in the lang directory - select language and find message in that member...) You can update the string in any language(s) you wish.
Remember that an upgrade of CPG will overwrite any changes you make - so be prepared to make them again...
I have created a 'new' language for some users that wanted a lot of changes... and keeps maintenance simpler - but requires rework for the next major release...