1. Click the Camera icon on the image toolbox and choose Upload Image to open the image uploading window.

▣ Upload Image window

2. Click Choose Image to select an image from your computer and continue to the Image Editing window.

▣ Edit Image Window

3. After the image was uploaded, you can give it a new name, crop it proportionally of free-form and eventually place it in your email by clicking on Place Image

You're Done.