The dashboard is the first view you'll see when you open MS ImageCompressor. You'll notice the 4 blocks at the top. The blocks will give you useful information about the compressed images. You can see how many images are on your server and how many are compressed and/or resized. The last block shows the amount of data MS ImageCompressor has saved you!
Beneath the four blocks, you'll notice two larger lists. The first one shows you the best optimized images; the images that saved you the most diskspace! The next list shows you the images that are the largest in filesize. If a check is next to the image, it is already optimized. If a cross is shown, it cannot be optimized.