you need to provide some info. orbit is allready installed on th phone from factory. I guess your phone is branded. You have 2 options:
1. enable flash desktop on the brnaded firmware
2. reflash the phone with generic software
look around a bit on this forum, you'll find the answer to both options.
this is how to upload other flash menus:
http://www.topsony.com/forum/showthread.php?t=45