Hi Cordite,

I have these images in a dropbox folder.
Scroll onto the image and then a "share" button will appear; click on "share" button.
A smaller display will pop up. Click on "create a link" at the bottom right.
A new line will appear; click on copy link. This is the link to the online image.
Then you can paste that link onto the forum post.
Hope this helps.

David