sure you should be able to get this to work out. I think I
would place the tween declarations inside a method that you can
control, then onRollOver you must call the two pulse tweens to
'stop()' and start the scale up tween - then onRollOut 'restart'
the pulse tweens by calling the method once again, essentially
'restarting' the pulse.
(i would also just place the 'scaleup' tween within the
onRollOver handler for simplicity and accessibility - always try to
make it easy to reference your codes - save on headaches ;)