I'll add to this. My father was diagnosed July 2007, was operated on July 10 to remove 70% of his stomach and a whole bunch of lymphs that were cancerous. He's been doing some intense chemo and so far his last cat scan came up clean. He has 2 more rounds of chemo to go, then we go in for another scan. If that's clean then he gets to stop chemo and we just monitor him with periodic scans.
Stay positive and have some sort of faith. People CAN beat this.