Pls download from Berry assistant and give it try
Now y can send sms from your desktop by your blackberry phone.
Let me know it works for blackberry phone or not.
BTW:send me email at support@mobitnt.com if y have any suggestions and i will give y a license
once BerryAssistant is released

The time spend on BerryAssistant is really very long from what i assume before,but finally,the beta version will be released within this week.
From this beta release y can send sms from desktop PC (sent through your blackberry)