For Fotki, click on the 'Share' button just above the image. This will bring up a box, and the first thing you will see is Image URL for use on other sites:. Left-click on the adress just below that, and it will turn orange and a 'copied' message will appear. Then come back to the MCM editor, and click on the image icon, just below the 'sizes' box. When you do that, another box will pop up. Then simply move the cursor into the text box and right-click to paste. Click OK, and the image will appear in the edit box.