IMO carbs are overrated in their involvement in body fat management.
First, except for 'recomping' (which is really slow) you need an energy (calorie) deficit to lose weight. So you need some idea of what your energy expenditure and consumption are.
Second, you need to lift weights to encourage your body to preserve muscle and burn fat.
Just read Rosie's guide for specifics:
http://www.rosiesmusclerevolution.webs.com/fat_loss.htm