Sending SMS Direct - [Sent] folder subject

Hi all,
I implemented a Direct SMS send in the same way as described in: http://www.newlc.com/Programatically-sending-an-SMS.html

I know there are a couple of ways to send SMS direct but
the alternative code (where you create the message MTM from scratch)
is much longer so I prefer the RSendAs method.

The only thing about RSendAs that I'm not happy about is the sms message
that gets placed in the [Sent] Folder, i.e. showing the [recpient number] instead of the [contact name].

When sending text from the native Messaging app I would see the following
in the sent folder:

(Recipient):Paris Jones
(msg body):"hello world"

However, with RSendAs I can only get:

(Recipient):077888999000
(msg body):"hello world"

I'd rather see the contact name rather than the contact number as it is easier to check.

Do you know a quick way of resolving this?

Cheers

Paris.