1. In Guest Messages create new guest message or open existing one.
2. Put cursor in the mail where you want to insert the image and click the image icon in the guest message editor.
3. Popup will open, click 'Browse Server' button.
4. You will see all images you have uploaded before and you can choose esiting one. Or click the upload icon in the top right corner.
5. Select image the image you want to upload from computer and click 'Open' this will upload the image.
6. Select the image you want to insert and click 'choose' icon that will appear in top right corner, or double click on the image to select it.
7. You can adjust the size of the image using Width or Height fields, click 'Ok' to insert the image. Don't forget to 'Save' changes to the mail template.
