If you want to private message users, you have to be using the Pain Companion app. In the Pain Companion app, there should be 3 lines on the upper left side of the screen. If you click on those 3 lines, a menu should drop down that has a "private messages" option.
Sorry I have been MIA. Another great weather change. Thank you Ambriellelyn. Yes you have to be using Pain Companion it is the sister program to Catch My Paim. Just click on the persons name it will take you to a page about that person and their is a box right there that says send private message, that is it. It you click on the info about the person the PM box goes away but just click back a page and go to the persons name again.