1. Download iTunes 7.7 from Apple.com manually and install it
2. Download the 2.0 Firmware from here:
    http://appldnld.apple.com.edgesuite.net/content.info.apple.com/iPhone/061-4955.20080710.bgt53/iPhone1,2_2.0_5A347_Restore.ipsw
3. Sync your iPhone to iTunes to backup your data
4. Go to the iPhone page in iTunes and Option+Click the "Check for ( Read more... )