Hi Adam,,
Yes, I can see two references to WebAssist in the Help Page, in two of the screenshot pics. You would need either to edit the images to show your own preferred content, or you could use the two attached to replace the existing help_4.png and help_5.png in your PowerCms folder's images directory.
I can't find the reference you mention in the 'Home page screen shot icons', perhaps you could take a screenshot of what you are seeing to help me find it?