Here's a quick anatomy lesson.
Navigation Key
Left Soft Key
Send Key
ò
Home Key
Fn
Function Key
Microphone
Messaging Key
2
Center Select Key
Right Soft Key
Power/End Key
Back Key
Speakerphone/
Fn
CAPS
Voice Recognition
Key
Camera Key
Light Sensor
Thumb Wheel
Side Back Key
ò
Enter Key
Caps Key