How do I add my logo?To add your logo you will need to edit the "Settings > Website Header & Footer" in the admin. This section is for HTML above and below the Photo Cart pages.
To add a logo you will need to first upload your logo file to your Misc. File section in the admin. Copy the HTML it gives you and paste it into the header section where you want it to be.
For information on basic HTML you can try to search google for basic html tags.