If I understand you properly, then here is some of the things you want to do:
1. Analyze --> Distribution --> Choose the difference variable, and press on the "Y,Columns" button ---> OK --->you'll find the mean under moments.
2. I don't understand what "t" you are looking for. If you mean a statistic for a one sample t test, then in the window of the "Distribution", you need to press on the lower red arrow and then choose "test mean", enter a specific hypothesis and you'll get your t.
3. Same as 2.
4. Same as 2.
6. I think it's 5% unless you change it, I didn't find where.
7. In order to find you can press on the red arrow of "Test Mean = Value", then you choose power animation, it will show it to you.
8,9. You'll see it when you do the t test, you'll have an option to add Wilcoxon by clicking once on the box, you'll see.
13. on the same window ("Distribution"), when you open the menu with the red arrow, you will get "Normal Quantile Plot", press on it and according to the graph decide if it's normal or not (you can also produce a teat for normality, choose a normal fit and then in the sub menu you can choose a goodness of fit test).
Play with it a bit, you'll find it, JMP is easy after you learn to use it, it got a different style then other software.