Help the Noob!

[sHockz]

Hi, I am a noob, and I need your assistance. I purchased a HTC Mogul 6800 and I LOVE IT. Meets all my criteria for being an awesome phone...except one. I came from a Treo 600 (ugh, I know) and there was one thing I specifically liked that the 6800 lacks...and that is organized text messaging. I LOVED how each conversation with an individual was like a AIM message, and I could search by peoples names through my inbox instead of through every freaking message I ever received. Since I do a LARGE deal of text messaging, this is very important. So anyone out there got a solution for a noob? It would be much appreciated...