Free: Manage your text message from your PC.

There are a few applications out there that lets you use your computer to manage and even send and receive sms. The most popular being Jeyo Mobile Companion from www.jeyo.com. This is achieved with your device connected via USB.
If you cannot afford Jeyo, check out Efficasoft Mobile Express from www.efficasoft.com/mobileexpress/index.html. It does exactly what Jeyo Mobile does but with more simplicity and it's free. Mobile Express is definitely worth a try.

Features:

Manage Text Message Inbox, Outbox, Sent Items, Deleted items.

Send, reply and forward text messages directly from desktop PC.

Supports text messages delivery notification request.

Export text messages to txt file in chat-history style.

Organize phone contacts.

Sync text messages automaticall.

New text Message arrival tray notification.

Sent from my Windows Mobile® phone.