Default [Q] Smsc and massaging help.

I was removing system apps on the stock rom and i accidentaly deleted Smsc and the default text messaging app. Thought i could replace them with handcent and it would work. Its currently crashing or just not sending texts. Can that be why its not working? Can someone send me the apk (with the odex, if you have it)?
Sent from my almost stock Xt910