Hi Roger,
Thanks for the Model Code data. Yours is a "standard" export to UK Cappo, so no surprises.
To post a photo in Gallery, click gallery in the top banner - the 3rd bar down. Choose either Members Photos, or Test if you just want to do a try-out. Click New Image button (on the left, below the "Members Photos" (or "Test") title.
Complete the imagename and description fields if you wish. Scroll down below the description box, click Browse, and navigate to the place where the image is located on your PC, and click Open to upload the image. Observe the maxima and filetypes permitted (below the file entry fields).
If you wish to include the image within a Message Board post, right-click the image in the Gallery and select "Copy Link" (this selection name may be browser dependent). Then paste the link into the post, using the URL button above the text entry box.
I hope that helps.