This is what I do to add a link in a forum reply:
Open a new internet window, on a PC it's control N,
go to you gallery and click on the photo you want to provide a link to,
copy down the really long http address
go back to the original window, and type in your reply like I am doing now
click on the link icon
Member Galleries by Cassperky at Splitcoaststampers
and type in the really long http address
click on the Preview Post button, to make sure you did everything correctly and you like what you said.
then click on submit reply button.
This is also the same way to
insert a photo
Hope this helps....