After you have made each curve dynamic and connected it to the uniform field, unhide everything in your scene.
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Parent the Copy of Curves to their correct joint. I do this by selecting the copy curve and Control clicking in the out liner until I see that I have selected the correct joint. Then I just hit P. The copy curves are now going to move where and tree moves and the springs are tied to them.
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Do not parent the curve for the tree trunk to the joint; you want it to stand alone. You should now have a scene that when you hit play, the joints will sway and the leaves will flap as if in a slight wind. Now we need to skin the tree to the joints. Return to your initial pose.
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Skinning the Palm Tree:
Select all of your polygon objects and shift select the Trunk_Root joint. Now click on the option box for Smooth Bind.
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Change the options to match below. This is not the only way to do this, but it has given me good results and it is easy to edit the results.
