Hi Punisher,
My personal opinion is to stay far away from CellspyPro and other Bluetooth based spy programs. These programs rarely work as advertised, if at all. A very large portion of the emails I receive every day are from upset customers who purchased Bluetooth spy software and cant get it to work.
Regardless what you read, or what anyone tells you, physical access to the phone is a #1 requirement. Even if the Bluetooth spy software worked as advertised, you still would have to "pair" the two devices, which does require physical access to the phone.
If you do not have access to the phone, then I would suggest either purchasing a new phone, installing the software, and give to user as a gift (its up to you to inform them if and what is installed), or try pc based spy ware. Most people use either their mobile phone or pc to chat, communicate, etc., so if you cant get to their mobile, then their pc is the next best thing, and most pc software has remote installation. The one I recommend is Sniper Spy. You can check it out at
SniperSpy Remote Spy Software - Expose the Truth in Real Time!.
Hope this helps.
SPG