Hello Desperate,
I think if you do some refined searches you will find answers on the internet. I found what type of soil they require quickly and I think I found the answer to the second question as well. Try a searches for "jade plant cuttings" (with the quotation marks).
Here is an article that will help you define your searches so that you target the correct sites and don't have to filter through a billion webpages to get what you want:
http://www.ubcbotanicalgarden.org/articles/1/
You will have to do some creative thinking. For instance the cutting info I viewed said to keep them on the dryside. How well do you think water would work?