Screen locked on picture of USB cord and iTunes

I just bought a 3G from someone. The phone worked fine until I plugged it in to the computer to set it up in iTunes. It went through the process of restoring but will never complete it. The error messag is 1015 which I found means I either need to update iTunes or switch USB ports or switch USB cords. I have tried all of these to no avail. The phone no longer does anything. I can't get the picture of the USB cord with the word iTunes above it to go away. I have just had surgery and can't leave my house for about another 3 weeks so going to the Apple Store isn't really an option for me. PLEASE HELP!