I live in warm San Diego and have lots of Jade plants and there's nothing that can hurt these guys. When it gets cold or too wet in the winter we can get brown leaves or mushy branches but in 22 years and I have some huge Jade it always springs back very quickly. I like to keep the lower branches cut and the dead flowers were all removed right after they turned brown. All this attracts snails. Your Jade is nice and green so if you don't see any bug problem which they really never get the plant will be just fine..

bur whats causing the misshapen leaves? they're all over hte place in the new growth...!!

As mentioned, Jade tends to be pretty bulletproof. If there aren't obvious signs of pests (aphids or spider mites in particular) it is either a systemic problem (fungus) or a genetic mutation (monstrose). Again, my experience with Jade is that it is basically invincible to pests and disease, so if I had to guess, I'd say it's a monstrose variety.

A few things to try:
1) Carefully inspect for pests. Get out a magnifying glass and really, really look. Maybe even spray some pesticide on a couple of growing points to see if the subsequent growth is "fixed".

2) Spray some growing tips with a fungicide (copper-salt soaps are the best!) and see if that does anything.

3) Consider a systemic treatment. However, if this is a large plant in the ground, a systemic treatment usually isn't practical.

4) Come up with some clever name, like Crassula 'Gremlin' and sell the cuttings as a monstrose cultivar!

Good luck, and please let us know if you figure it out!