open the sms/mms/email sw
click on menu and then tools and then alternativ
click on the messages tab and check save copys of sent messages in the sent folder.
if its already checked uncheck it send a message and check it again.
oh right is it that they create a chained message w all sent and received you mean that you dont like
also found here I just rewrote the tut incase 1st was illogical
http://www.alltouchpro2.com/index.php?topic=116.0