Photobucket is a free program, on which you can store photos.
Once you have a photo stored to Photobucket, click on that photo, and you should see a side panel of options.
Click on the "IMG" link, and copy it.
When you get back to SpeyPages, click on the icon with the mountain/sun. Right click inside the box, and paste your link there.
When it finishes, you can click the Preview Post to see if it worked. If it did, you're there!
Let us know how it goes. If it doesn't work, there may be a subtle step missed, or not adequately described herein.
good luck,
Bob