Emikeeann!
Have you read the book? It's really important.
Personally, I somehow missed the part of the book where he limited dairy, so I just had as much as I wanted; by the time I figured it out, I decided it wasn't a problem. It never affected my weightloss, and I eat a lot of dairy. But I only eat/drink fat free with the exception of cheese (I use lowfat).
However, yogurt is digested as a carbohydrate by your body. It has protein, but that's not what the body recognizes. So it tends to make you hungrier than eating eggs. Personally, I hate eggs, so I have had to come up with other ideas. You can find some of mine along with a ton of others from other Beaches in the
Alternatives to Eggs for Breakfast? thread, which is stickied in the FAQ. I highly suggest using cottage cheese for your breakfast rather than yogurt. You can add tomatoes and/or cucumbers for crunch, flavor, and good carbs.