I am not sure which polls you are referring to. Bush dropped 4% in this poll, though Kerry didn't move up at all.
He's was behind in the last round of polls, but was ahead in today's Rasmussen. At least he hasn't fallen behind in this poll.
Yah, I think you can read from that that Kerry has absolutely peaked. He can't get more than 42-45%, depending on the poll. That is horrible news for him, because, as Dickie Morris said, Bush had the worst 6 weeks of any president in recent memory, and he's still ahead in a 3-way race. Bush also expanded his leads in all categories today in the Rasmussen poll---for what that's worth.