Happy Easter Brian! Glad to hear you got out for a hunt today.
To post pictures you need to put your photos on a photo hosting site.
I use Photobucket but there are others.
Once your pics are on a photo hosting site its just a matter of cutting and pasting the image address into your post on the forum. Its actually really easy once you do it a few times.
I need to make a tutorial for the forum, you're not the first to ask