Um.
Maybe you need to be on a different diet?
Do you exercise regularly? As in, every single day for at least a half hour? That will help your body to use up the fat it has in storage.
What about portion control? For a run down on actual portion sizes check here:
http://www.usda.gov/cnpp/Pubs/Brochures/index.html#Much
Look for the "How Much Are You Eating" brochure, which will download as a pdf.
Also, when was the last time you had a full and complete physical, paying special attention to anything that may interfere with weightloss (such as thyroid malfunction)?