Papaw, the Gazette, and many other forums, including this one , won't show you pictures unless you are logged in.....some will allow you to see posts with only photo, but that's about it....
Hotlinking the pictures won't change that , (in fact, that is part of the reason it is done, so people who aren't members won't swipe the forums content by linking it in to a web page...)
bob, all I can suggest is try photobucket, you can upload any size you want, and link it into multiple different forums without having to upload it all over again...