I'm about 20 lbs heavier than you, but the same height. There are plenty of slalom sticks short enough for you, but if you want to lay out long turns, you're going to have a tough time. So far as I can tell, you've got a few options:
1) Shorter all-mountain board (prior 4x4, burton coil, etc).
2) Shorter slalom/gs board. The burton ultra prime 156 might do you well. The 162 was a little stiff for me, but I've heard the 156 is significantly softer.
3) A softer Madd (F1 flex, or a 90's vintage). I've got one of these, and absolutely love it.
What's your budget like? $700-800 will buy you a great board, custom-built for your weight. $300-400 will get you a great-condition late-model used one (madd, prior, donek) on the classifieds, but you might have to wait/ask around for one in the right size. $375 will also buy you a new Donek pilot, their light-weight/beginner carver, which I've heard some good stuff about. $100-$150ish will buy you something late-90's by Rossignol, Hot, or Burton. A lot of these have ugly-ass graphics, but I've heard they're great boards, especially for beginners.