We are a support site and answer specific questions. Is there a particular question about the IPhone 4?
Ok..I can help with that. First .. let's make sure you have internet access on the phone ... there is a browser icon on your home screen dock (4 icons on the bottom of your screen) ... it's blue icon that looks like a compass
Tap on that and see if you can browse some websites.
Great ... lesson 1 check
Now who's your email provider?
Now tap on the settings icon (looks like a gear)
Tap mail, contact, calendars
Tap add account
Enter your gmail account information
And you're done on email setup
Now you can tap on the mail icon and it should connect and download your gmail messages.
ok...so let's look at the first step
Do you see the gear icon? (that's your settings icon)
The first 2 icons are the gear icon ... look for this icon on your phone. Do you see it?