Simply go to the download page of the listing and then select the photo (or photos) that you want to download with branding
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Press download and then select the branding you would like to use. You can also upload a new branding file at this point

The upload section would also be visible once you select the branded option:
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If you choose to upload a new logo, here's what you'll see

There are 4 branding sizes/types and 3 positions to pick from which you'll be able to see:

Lastly, Click "Download Images". The system then creates the images for you after which the download begins.

Here's a sample of what you'd be able to see:
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