Pull the plug on your computer, let it sit for 5 minutes, and plug in back in. (Don't have anything connected to the USB ports when you do this). You do know that the computer will only find your iPhone when there are photos on it to be transferred? Other than that you will just see it in iTunes.
You've got to be kidding me! How in the world would I know about the photo thingy? Programmers & companies assume too mch as to what consumers do & do not know. I'll try in a few minutes & let you know.
hmm. this is strange. but, have you tried taking pictures and then connecting it to the computer? If this is not gonna work, try connecting your phone to a different computer. See if that works, and try connecting other iphones to your computer so we can identify if it's the iphone or the computer.