Finally on your iPhone:
- Goto the Photos section of your camera. Browse through the albums or camera roll until you find the picture you wish to use.
- Select the picture so it is displayed full screen.
- Tap the icon in the lower left corner of the screen. If you don't see the icon, single tap the picture to display the menus.
- Here you can select if you want to email the picture, save the picture as a wallpaper, or assign to a contact.
- If you want to assign to a contact, press that button. The contact list will open and you can select the contact you wish to link to the picture.
- Select Done to complete the process.