I understand your support for Akin, but you are being a little selective in your citing of polls. Did you include Rasmussen of 12 Sep in your calculus? (M 49 A 43)
McCaskill has a boatload of money to saturate the KC and StL markets with ads reminding the voters of Akin's words. Akin will lose big in Platte, Clay, and Jackson counties, and in the St. Louis suburbs outside of Chesterfield. This is just not going to happen and its probably too late to do anything about it.
That poll is actually 49-47 if you read that 4% want some other candidate. Those 4% are Republicans still hoping for a Sept 25th resignation so their dream candidate can be appointed but that will not happen. We still have not seen the internals of that poll. Rasmussen should publish them. Everyone else publishes theirs.
She does have a ferryboat load of money but she lacks boots on the ground and that is worth something that money can't buy.