I doubt you will crack the advanced. I "had" an '04 with 3,300 miles on it. Mine cracked on the non-driveside seat stay about 3-4 inches above the rear drop out. The damage looked like scratches and then I realized it was cracked about 1/3 of the way through the tubing. I have no clue how it happened, I haven't dropped or crashed the bike.
I'm hoping to get one of the 2009 TCR frames, they are all new for '09. I want this one to be full dura ace with a mavic kysrium SL wheelset.
In the meantime my friend loaned me an extra fixed gear to ride. I much prefer having gears!