Currently Being ModeratedMay 14, 2012 12:08 PM (in response to adamcohn)
You should be importing all pics/vids taken with iphone to your computer regularly as you would with any digital camera.
If you have failed to do this, then your pics/vids are likely gone.
You can try restoring from backup.
Currently Being ModeratedMay 14, 2012 5:18 PM (in response to roaminggnome)
True, but that doesn't answer my question. Does syncing back up photos to the computer, and if so, how do I access them? And if not, why did the update erase only a subset of the photos?
Currently Being ModeratedMay 14, 2012 5:22 PM (in response to adamcohn)
Well, it doesn't technically back them up, but rather puts them on the computer. You can access them in either iPhoto or in iTunes. If the photos are already on the computer, try syncing the iPhone and set it to Sync Photos and Videos in Camera Roll.