You'll need to save to an account like photobucket, it seems the easiest...
than you copy the link off photobucket and viola' it posts..
Here is a step by step...
The photobucket account gives you three options to link from..
use the img link..
copy and paste it..

You should see a [url code].............................. [/url]
than when you post you will see the photo pop up..
BTW, if you click on the above photo link.. it will pop up another window because this link is actually a slide show that I could get 10 photos or so on!
Is that clear as mud? I find photobucket the easiest to you..because all I have to do is cut and paste..
Let me know if I can help any more..
You might need to get your post count up some more before you can post photos.. but I'm not real sure about that...