Creating a Motion Guide in Flash

There are many advantage to creating a path for an object to follow, the main is that you can determine the position and speed of an object at any point on the time line.
The method to creating a motion path is to create a path with either the pen tool or brush. Then in the layers panel right click on the new path layer and "add classic motion guide" this will allow another movieclip to move along the path when tweened.