I've searched around the site quite a bit, and I haven't been able to find any programs for threaded text messages. It's the style they have on Palm devices. I was actually looking for a screenshot for this thread so I could show what I was looking for when I found
this tutorial, which includes downloads. (Mods, let me know if linking to another forum and to their downloads is ok; I can re host it in this thread if necessary)
Here is a pic of how your new text messaging setup will look:
Personally I think this setup is much cooler and easier than what is typically included in phones. Hopefully this helps someone.
Incidentally I just wanted to say that I really like the site; you guys do a great job around here with everything.