Flash CS4 is not particularly different from the previous version cs3 on the interface, adding 3d tools, Deco tools, and skeleton tools to the Tools menu. An animation editor was added to the MC. The scripting language has not changed, mainly for the new version of the skeleton tools to do a relatively trial, the following is a concrete example.
First of all, make a simple match for each of the joints to be able to work as a separate MC as shown.
The skeletal tools of the cs4 façade are as inverse dynamics as the 3dmax, so the binding of bones should follow this principle. Bind the head and limbs to the human torso. Use the Skeleton tool to select the head this MC is directly connected to the corresponding torso, the focus of the selected MC can be adjusted, the use of arbitrary deformation tool adjustment can be.
The same way the other parts of the body are connected by the principle of direction dynamics, so that the binding of the skeleton is complete. Then create the key frame on the timeline to adjust the action you want to do, because the skeleton has been bound so you can drag the body of the match to adjust the whole body, the central point of the skeleton connection can be adjusted through the arbitrary deformation tool.
The end of the tutorial, the above is the flash production characters will be active joint method, I hope to help you!