If you want to remove the cursor, I'm guessing that you want to replace
it with something else. Are you planning on using a custom cursor
and/or the cursor Xtra to display that custom cursor?
Cursor 200 will turn off the cursor for the movie, but, since the
cursor belongs to the system and not the application, there are
cirstances where the system will insist on restoring the cursor.
There are a number of sections in the online manual that deal with
cursors. Remember, other than the movie's cursor object, there is also
a cursor property available to every sprite on the stage.
To control the movement of an object on the stage using keys you will
have to create a key event function and then interpret the keystrokes.
Look at the section in the online help about working with the keyboard.
There are also a number of tech notes that will be helpful to you.
These are located at Macromedia's web site.