I have an original iPhone. How do I get it to work? I have an original iPhone and an iPhone 4. 

Both phones are mine that I have owned since their respective launch days. That said I have not used my iPhone since I switched to the 4 and after I did that switch I forgot my passcode to unlock the screen. Since I couldn't get into it and I wanted to get my iPhone ready to just be a wifi remote around my apartment I went to iTunes and reset it back to factory defaults. 

Now it just shows that 'connect to iTunes' screen and nothing else. Is there anyway to use it?  Or is my old iPhone bricked?
Put a valid AT&amp;T sim (or the SIM from when you last activated this phone) in the slot.
Charge it for at least 15 minutes.
Restore again and post the specific error message from iTunes logs you are getting.