Ok due to my "extensive software authoring and database management credentials" I have found a work around for the attaching of photos in the 'Buy, Sell or Swap' section.
For all those having trouble once you have tried to attach a photo but no .jpg image shows as being attached, click the 'Go Advanced' button instead of the 'Post Quick Reply' button.
This shows the .jpg image as attached and you can then click the 'Post' button.
Bookmarks