You can change this but unfortunately we do not specialise in Product Listing template design and development so its not a service we can provide.
You are welcome to have your own template designed and built or you can amend the one provided.
Swift Productions or Dzine-Hub (there are others so feel free to shop around) provide sellers on eBay with services such as product listing template and custom eBay store design and development. Please contact them if you are interested. Or you can use the existing template HTML and make changes to it.
If you have a product listing template created or you want to change the existing template in Omnivore please go to:
Settings, eBay Australia, Product Template, Product listing template.
The html can be accessed and updated from there. We have included a reset product template if you get stuck and need to start again.