Robbie either there is something wrong with your torque wrench, or you had it set wrong. It has to be one hell of a way out to actuelly shear the bolt!
If you are so much a novice as even needing a torgue wrench when only a nip was required then I would cross your fingers, smear some liguid silicone gasket around the flange and leave well alone because it is going to be a big job to get that sheared bolt out, if indeed it can be done.
That picture link ?? see FAQ's for posting oictures.