Follow the steps to send the sms via your phone with the help of nokia pc suite
1. Install the Nokia PC suite from the cd which you got with your nokia phone at the time of purchase.
2. After getting connected with nokia pc suite via Bluetooth or through usb cable.
3. Open Nokia phone browser in My Computer.
4. Click on the which has a tooltip as create a new text message in the
vertical sidebar
5. Nokia Text Message Editor will open up in which you can enter the number and type your message
6. After typing click on File>>Send to send the message.