I tried it and it actually worked.

I also discovered the hard way that all those items in the side boxes are in the banners section so if one tries to find them by searching files you'll spend a lot of time looking.

For waht it is worth, the technique someone recommended that worked is:

1. Open the catalogue and right click on the image you want to change then slect properties and write down the file name.

2. Go to the Banners area and open the stock entries one at a time to find the matching file.

3. Select the option to upload the new banner, being sure to add /banners to the location box of where they are uploaded to.

Lots of trial and error, but once I did it it worked!

Thanks again for the help