Hi,
When your looking at the picture in your gallery there are two different sections down the bottom that give the code you want to use to put it into your post.
If you want to use a small thumbnail that will open the larger picture in a new window when clicked simply cut and paste the contents of the box next to the line "BB Image Code:".
Or if you want the larger picture then copy the contents of the box next to "Direct Link Code:" and paste it into the box that pops up when you click on the "insert image" button () while writing your post.
You can only edit posts for approx 9 minutes after you first make them - if you need ot edit one after that then just ask any of the staff for help.
dr del