Anyone help?  My boxer bitch is looking very over weight since she had her litter of pups.  She's fed on pedigree complete.  Any advice on what to do?

Is she getting plenty of exercise?  That is always the first thing I would try to improve as most dogs do not get enough in my opinion.  If not you need to reduce the amount you are feeding or select a food with lower calories if you think she will not appreciate the smaller quantity.