Well if you want something it will apear somehow? 
I've just fixed the back/fw buttons using BetterTouchTool, and i quote
- BetterTouchTool is a great, feature packed FREE app that allows you to configure many gestures for your Magic Mouse, Macbook Trackpad and Magic Trackpad. It also allows you to configure actions for keyboard shortcuts, normal mice and the Apple Remote. In addition to this it has an iOS companion App (BTT Remote) which can also be configured to control your Mac the way you want.
- BetterTouchTool includes many goodies, like window snapping or an integrated window switcher.
And the settings i used
Have fun everybody!!!!!!