I picked Molly up from the vet just now, and you'll be pleased to hear that the prognosis is much better than first thought; the two ribs that were thought to be broken are in fact chipped, and the ribs on that side are very badly bruised and sprained and will cause her pain for a good while but will heal completely. The two puncture wounds caused by the attacker's canines made things look a lot worse than they are, and Sue, my vet, has been able to stitch all the internals cleanly and expects no ongoing problems.
The whole of the front quarter is massively bruised and will cause pain and discomfort for a considerable time, but again no lasting damage, and the large flap of skin has been stitched bak in place without too much loss of dead flesh; there'll be a big scar but again no lasting damage. It's taken forty two stitches to put her back together, between the internal and external and she'll be on lead exercise only for at least three weeks and will have to wear a small child's t-shirt to stop her licking the wound, but she should be physically in good shape in a month or so. She's an extremely fit and active dog and that's what has saved her from serious problems, but it's also going to make keeping her quiet on the lead a nightmare!
All in all a much better outcome than was at first thought................Ask me how relieved am I?