Having played your 'Super Bounce Bounce', I assume that what you want is the player to move while the touch is 'down'. In that case I think the way to go is something like:
-Touch 'Is In Touch'
--Touch.X < (Window.Width / 2)
---Player Simulate Control 'Left'
--Touch.X => (Window.Width / 2)
---Player Simulate Control 'Right'
I hope that made sense but it should work I think.
**Edit** You might be able/want to change 'Is in Touch' with 'Touch on Hold'. You'll have to try both.