ok..the way it worked for me.
I had to change my settings like this:
click on settings in right top of this page.
On the left site of your page see:my settings-my account.
Click on general settings.
scroll down to miscellanous options- then message editor interface.
click the 3th option=standard editor-extra formatting controls.
above the box where you can read your message you see a little tree in a square.
click this and there's a pop-up you can use to attache the picture.
If it doesn't take your picture, your file is too big.
You can make it smaller with paint