weight loss- NOT

I've been doing zumba for about 6 weeks now and I haven't lost weight. Granted, I do it only twice a week, an hour each time, but I think I should still lose a little bit weight. I've been losing inches though, which is good. Pretty soon, I hope to be back to my "fighting" form. I've gained 20 lbs since we moved here and it's just so hard to lose them now that I am also older. A friend recommended using a fat burner called Lipofuze, which I will be checking out soon. If I sound desperate, well, I am. The holidays are fast approaching!