I modified line 1102 of my showphoto.php file to this so that it prints the full URL:
$showbbcode = " | ";
Content visible to verified customers only.
I figured this out by searching for other mods that were similar to what I wanted. This is working perfectly for me and now my UBB uses can easily paste pictures into their posts. There is a lot of good stuff here - you just need to spend a little time using the search function!