Yes, those are the image tags (without the spaces).
If the image is somewhere on the internet already, right click and select "copy image URL". Then paste in the tags and voila!
If it's on your personal computer, you need to upload it to a site like Photobucket or ImageShack first. You have to register, but it's free! Hope that helps!
"You do ill if you praise, but worse if you censure, what you do not understand." Leonardo Da Vinci
All truly wise thoughts have been thought already thousands of times; but to make them truly ours, we must think them over again honestly, till they take root in our personal experience. — Johann Wolfgang von Goethe