I have all of my files in .cfm instead of .html. Will the generator not work if it's that way? I went to the main page and then to generate google sitemap, it keeps asking me to define a site, when I press ok it says "JS error occured: at line 218 of file..."

Hello Michelle,

Do you have your site Defined in DreamWeaver through Site->New Site... menu?
Also, please, provide full text of the error.

Regards,