How to Get Pictures Off an iPhone 3G
Your iPhone 3G uses iTunes for most of its syncing functions. Unfortunately, when you perform a sync on your iPhone, it does not automatically pull photos from your iPhone camera roll. To remove your iPhone pictures, you have to go into your iPhone 3G file system and cut/paste your photos to your computer Pictures folder. Your Pictures folder is a Windows-designated folder for storing your personal photos.
Cut Photos From iPhone
Plug your iPhone 3G into your computer using your USB cord.
Click the "Start" button. Choose your "Computer" from the list of options.
Double-click your iPhone from the list of your attached hard drives.
Double-click the "DCIM" folder. Double-click the "Internal Storage" icon. Double-click the "800AAAAA" folder. This folder contains all the photos stored to your camera roll.
Press the "Ctrl" and the "A" button to select all the photos. Right-click a photo. Choose the "Cut" option.
Paste Photos from iPhone
Click the "Start" button. Open your "Pictures" folder.
Right-click a blank area of the "Pictures" folder.
Choose "Paste" from the list of options. Wait for your photos to transfer.