Copy all the images to a New folder using a distinct folder name such as  "your name 2007 summer vacation" (please number each image in the order that they will appear in the show) 

Right click on this new folder and a menu will appear.  Place the cursor (arrow) on 'send to'...another menu will appear.  Place the cursor on 'compressed (zipped) folder' and left click.  This will activate a program to make a zipped copy of the new folder and place it in your documents.

Now, when you click on the button "go to our dropbox" and a screen will appear. Enter all information and click the "browse" button and locate that zipped folder.  Click or highlight the zipped file, click "open" and you are now ready to send all your digital photos with one click of the "Send it" Button.