When I installed the photo gallery, I removed attachment priviledges in the discussion forum. My intent was to encourage use of the Share section. However, some members found it a hassle to have to upload a picture, view the picture, copy the code, paste the code, etc. So, I installed this feature.
On the right side (above the smileys) of your posting window, you will now see a box called My Pictures with a link to open a popup gallery. You'll see all the pictures you've uploaded and will be able to insert them into your post with a single click.
For non-Mozilla users, the image will automatically link to the respective gallery page. For Mozilla Firefox users (like me), apparently this link feature isn't possibe because of some Firefox limitation. I didn't create the hack, but I am speaking with the developer to find out why it isn't yet possible.
Anyway, I hope you enjoy!