There are a couple of ways to access the latest webpage templates from Artsman.
First and foremost, start by reading the documentation about the web pages at https://help.theatremanager.com/installing-theatre-manager/upgrading-web-pages. This will give you most of what you need to start customizing your pages.
When you are ready to get into customization, you will need a copy of the current webpages.
Option 1: You can download them from https://help.theatremanager.com/upgrading-theatre-manager/latest-web-pages
Either way, once you have the page you would like to edit, save a copy to the appropriate folder in your custom folder. i.e. (from download)…\1\WebPagesEN\TMtemplates --> (web server)…\1\WebPagesEN\TMtemplates
NOTE - Customizations may break current things or prevent a new feature from working properly. I have broken my TM web-store more than once.
The nice thing about the way TM is setup, if you do end up breaking something, you can rename the file to “filename”-temp.html and the original TM version will kick back in.