Click on the "Image" icon (above) next to the LaTex icon
Select the "Upload" Tab
Hit the Browse Button and select the file you want to upload
Hit the "Open Tab".......this will send you back to the original page
Then hit the "Upload Now" button on that page...you should see "Success"
Copy the URL address that appears in pink in the box
Hit the Image Info Tab at the top of this page...this sends you to another page
Paste the address into the URL box and hit the green "OK" button
Your image should appear