Have you tried to update it by going to Settings - General - Software Update? This will work as long as your not jailbroken.At work don't have iTunes here, I'd there any other way to get it? Thanks.
The only way that you'll be able to update your phone is through iTunes. Once you updated to 5.0+, you will then be able to use the OTA updating. Until then, iTunes all the way.My phone has what you said but the one I'm trying to update doesn't give me that option. I hit settings, general but software update doesn't come up. I don't know.