New banner

How do I change the banner where it says "Sales Message goes here" What is the size and where do I upload to replace the Zen cart banner?

Thanks

That is not a banner but just a string of text called the "tagline" displayed in that area of the header.

Use the Developer's Tool Kit in Admin > Tools, enter the exact text you want to change, select "all files" and search. It will display the file and line number you need to edit. To remove it, set the definition to ' ' (blank).

For the logo, just make a gif of your desired image, name it "logo.gif", and load it into /includes/templates/<your_template>/images/, replacing the zencart logo.gif there. The script will adjust the header to fit the size of your logo.

The header background is set in your stylesheet. Make your image and save in the same folder as above, using whatever name you want. Search for "background-image:" and replace the url with the correct path, e.g.
background-image: url(/includes/templates/<your_template>/images/parch4-100.gif);

The new edit timeout is only 5 minutes, so I have to add this here:

If you don't find background-image under #headerWrapper, make a new definition:

#headerWrapper {
background-image: url(etc):
}