Right click
Save Picture As
Save to your desktop.
On reply to thread in SOMD online scroll down and click on "Manage Attachements"
Another window will open and where it says "Browse" click on the first one.
Search for the picture on your desktop and press "Upload"
The picture must meet the parameters listed in the window of you'll receive a failure message.
If picture successfully loads, close the pop up window and hit the "Submit Reply"
Done...