Re: General HELP!!!!!
Start with downloading and installing a good FTP tool on your PC. You will need it for accessing the files on your webhost.
Once that is done, you will see things like: /includes/templates/classic/ in the instructions to modify a file ... that is the path to the file. I.e. - open your FTP, login to your hosting account find the www or public_html or whatever directory you have the Zen Cart program in. Then open the includes folder, find the templates folder, etc.
Please do not PM for support issues: a private solution doesn't benefit the community.
Be careful with unsolicited advice via email or PM - Make sure the person you are talking to is a reliable source.