Phone [Q] Sent SMS Retrival

Hi Friends
Thnx in advance..

My Query is can any one help me to retrive the sms sent from one my app installed in on my device..
Unfortunatly the sms sent will not be present in my Messaging Box..
i am sure the app sends an sms due to it says it,,and my career charges me the standars sms...
but i want to retrive that sent sms...

i tried with some sms spy apps..but no use..

can any one please help for this....

Thanks a lot....