I just thought I would let you know. With BBcode it's relatively easy to insert anything from a link, to an image straight to the forum.
You might want to use an image hosting website, because then you can just insert the image straight to your post and we don't have to download it.
Here are a few easy codes for you.
[img] [/img] Use this and put the link to the direct image between ]here[ between the two brackets in the middle. This will show your picture on your post, instead of a link to the picture.
You can find quite a few neat things in this link.