After you install it you have to enable it under language and keyboard settings. Then in any dialogue box press and hold and select input method. Then select numberpad keyboard
Handcent T9? You sure?
No setting for T9 in Handcent...
Menu > Settings > language & keyboard? not seeing a setting for T9.... and when holding dialogue box only "android keyboard" is an option.
my bad. I'm sorry. It's an app that's called numberpad keyboard. works awesome.