It's very simple.
1.Go to the picture in the gallery. Put you mouse on the picture and click your RIGHT mouse button.
2. A menu will appear.
3. Choose "Properties"
4. A new window appears. Copy the URL address.
5. Go to the forum and start your topic (or reply on one)
6. Choose the [img] button
7. A text appear like img]http://put.url.here/image.file[/img
8. Paste the URL on plae of the text:
http://put.url.here/image.fileTHAT'S IT FOLKS!
Good luck with it, and there are no stupids questions in this world!!!!!!!