Welcome to 3FC!
Okay. So you might want to start out looking into the Featherweights section (for those looking only to lose a few more pounds or starting at lighter weights), and the Calorie Counters area under Diet Central. There's also a 30-something's section, too!
Some quick advice: You are actually within a normal weight range for your height, so the extra weight might be a little trickier to get off... and it might not actually be only related to the weight itself, but activity. You might find that adding in activity and dropping only a few pounds could change the way your body looks significantly.
I certainly can't say that you'll look the same you did 10 years ago, but you definitely CAN lose weight, and add activity regularly to keep yourself healthy!
Look around. Post where you're comfortable. Can't wait to see you around the boards!