I've just had the identical thing happen to me. Also a second hand TCR advanced (2010). Brought it to my lbs who have told me the cup should have been bonded inside the head tube and that it is not repairable and to bin the frame. Advised me not to try gluing the cup back in. I had resigned myself to getting rid of the frame, but reading this thread has me confused. Did the OP put the cup back in and how has it been? Thanks in advance for sharing any info you have.