Just a quick thought:
Doesn't the Bible teach that the Anti-Christ will sign a peace treaty with Israel, and that that will be the beginning of the tribulation? If that's the case, then the Anti-Christ must come (i.e. be alive, on the earth, in some seat of power - otherwise how could he sign a peace treaty between Israel and basically the world) before the rapture, unless:
1) the rapture happens a long time before the tribulation (which no one believes - Pre-tribbers believe the Rapture happens basically right before the Tribulation)
or
2) the Anti-Christ is only a few days/weeks old when he signs the peace treaty (and the thought of this is just silly! )