The same way you import a picture from a separate website.
1. Click on "use full editor" to right corner of text box
2. Open second window, and locate the picture you want to import
3. Resize your CM window and other site, so you can see both the CM text box and a part of the image you want to import
4. Click and drag the image into the text box...you should see a black cursor line in the box if you're doing it right
And that's it! Keep in mind that images contain a lot of characters so you may be limited in how much you write to explain your picture (if an explanation may be necessary!), but you can post several times in a row to explain or punctuate your point! :o)
at 6:03 PM on Sep. 5, 2010