I have a TDMA 6560 Nokia. I bought a DKU5 and get a PC Suite compatilble with that. But, the Pc Suite is not able do send get sms from my computer

The question is: "Is it possible develop a application that can send/receive sms from my computer?" If yes, what i need? If no, is there someone interested in buy a DKU??? :^)

I bought the cable thinking that it works how i would like to work.

Thanks a lot and sorry by poor grammar. (i'm from brazil)