Well, the problem has disappeared. Being a new user of your plugin, I had been experimenting with settings. I had been using a catalog format, Inquiry, when I should have been using Simple Catalog. That moved the image to the left. Which was an improvement. As began entering more info in my product fields, I discovered that the short description and price appeared to the right of the image, balancing the left-justified image. If I had been able to visualize the formats of the catalog modes, I would not have been writing this… hehe
I would like to suggest that you include a small icon, or open a box with a picture of each of the modes, with where the fields display where for each mode. That way the user has an idea of what to expect if all the fields are completed.
I am having fun using eCommerce Product Catalog, especially with all the helpful information available… thanks for creating a really useful plugin.