Yup. Nothing much you can do in 2 weeks to improve strength or cardiovacular efficiency.
However, what you can do to help ease the pain is to start stretching. Light workout for legs and core (abs and back) will help get the muscles more conditioned to the upcoming strenuous exercise, though they won't be any stronger in that short time.
Work muscles everyday for the first week, starting first day with nothing but extremely light weights. The trick is to work the muscles hard enought but avoid working them to the point that they can't recover by the next day. Ramp up in intensity for each consequitive day. Again, it is important to not get over eager and work them too hard, because the point is to be able to ramp up in intensity a little every day. The key here is to ramp up, but don't overdo. Stretching everyday is important. If you get a little sore, back off the next day to make sure you are recovered the following day. Remember sore muscles get progressive weaker, not stronger.
Rest/recovery days. NO strength work to allow full recovery. Do daily stretches. Do some activity both those days that is aerobic but not involving legs, like swimming. Don't overdo.
Hard strength work day. Leg presses, abs, back. Work to a point that you will be a bit sore the next day, but not so sore that you will be disabled for the next day.
Swim (or any aerobic activity that doesn't involve your skiing muscles i.e. legs, core).
Light swim or a light 30 minute on an exercise bike (low resistance!!!!! higher rpm!!!) Stretch!
Hard strength training, as in Day 9. Enough so you will be just a little sore the next day, but not any more than that! Stretch. Take a whirlpool afterwards.
Stretch. Go for a light short swim to stay limber. Don't do anything else but rest.
s. Taper down and rest with minimal work for Day 8 and 9. Intense work on Day 10, push your work level that you will be a bit sore the next day. Go very light Day 11, mainly rest and stretch.