Ha. As well as noting that the red lines are not met, the European Scrutiny Committee have put the Constitutional Treaty under their scrutiny reserve, meaning that ministers are not supposed to sign it until Parliament has at least had a chance to look at it.
Will Ministers listen? Unlikely.
They "override" the scrutiny reserve constantly - making a mockery of any attempt to even look at the vast flood of EU legislation going through Parliament on the nod. So it's unlikely to stop ministers jetting off to their taxpayer funded jolly in Lisbon and Brussels.