i) note besides: the Makefile in your zip does not work for others
ii) using Qt4.4 (Linux) your code seems to work

running your app and clicking the red rectangle, I get:
Hello from Qt 4!
view pressed
QCTimelineScene: mousePressEvent
scene clicked
view pressed
QCTimelineScene: mousePressEvent
scene clicked
view pressed
QCTimelineScene: mousePressEvent

Should it do more?