DISCLAIMER: I am NOT liable for any damage this tutorial may have caused to your computer or cellphone.
In order to create a flash lite menu, one of the most important things to establish is how the flash application will react to a button being pressed on your keypad. In Flash Lite 1.1, the easiest method of achieving this is to use actionscript in conjunction with a button.
Firstly, you will need to create a symbol as a button. After placing it on stage, right-click on it to select Actions and enter this:
//put in response here
|Cellphone Button||Keypress Designation|
0-9, *, #
Left Arrow key
Right Arrow key
Up Arrow key
Down Arrow key
Left soft key
Right soft key
|0, 1, 2, 3, 4, 5, 6, 7, 8, -9, *, #|
In Flash Lite 2.0, you can actually create movie clip listeners that will listen for any key being pressed and return the identity of the key being pressed. For more indepth differences, you can take a look here.