Hi Dave, Chris, et al.
Thanks for all your help in getting the Textile Editor Helper working for me. While I can't explain why one download worked without including prototype.js and the other requires it, I have put up a step-by-step guide to using acts_as_textiled and the Textile Editor Helper for adding support for Textile markup in a web site. It starts from creating a new Rails app all the way up to getting the helper working. I imagine it should be of help/interest to a newbie
By the way, I'm still struggling with the using the code formatting macro and the stylesheets for code for Mephisto, so I know it doesn't look quite as pretty as it should..