How do I move text messages?

I have a question that I'm not sure goes here, but I don't know where else to put it or who else to ask. I have a profession where I have to log all conversations with clients. Recently one of my clients and I have been texting quite a bit. I need to know if there is a way to move the texts from my cell (cingular 8125) and print it out in a readable format? I have downloaded two programs-their trial versions, and so far they don't work. I do not believe my texts are being saved as SMS files, there is a file extention that is a MPB file though,and that seems to be the texts messages. I really don't want to have to write out 200 text messages by hand. If anyone could help that would be great!

IF anyone has any idea, that would be great.

Thanks,

G