I looked for your post in the exercise forum but possibly missed it...so I'm replying here
You can't spot reduce, like kisskiss said. Unfortunately. The only way to get rid of fat anywhere is to reduce your overall body fat. That being said, weight training and exercises that tone the muscle underneath the fat will likely give you a less "flabby" appearence once the fat comes off. Without weight training, you could lose all the weight and your arms would probably just look like a smaller version of what they are now and you still might not be happy.
There are lots of good exercises out there for arms. There's tons of variations on the bicep curl that you can do - hammer curls, concentration curls, dumbell curls, etc - google usually gives you pictures. Triceps always seem to be the cause of so much grief on me, but I really like doing bench dips. I also do tricep kickbacks and tricep extentions. The key here is to reduce your overall body fat percentage and build lean muscle to give your arms a more toned appearence.
I know some women are paranoid of getting "bulky" and I have heard people say _______ looks bigger since they started lifting. It's just because you still have fat on top and you are building muscle underneath. Get rid of the fat and you'll have some nice, lean arms. It's really difficult for women to put on muscle mass and nearly impossible when you're on a calorie restrictive diet. Building muscle requires a calorie surplus in conjunction with heavy weight training so try not to get too freaked out if your arms appear bigger than before. You'll be glad you lifted once all the fat comes off