What is the best path to upgrade to the latest version of PIAF from whichever version I have of PIAF now, which is the version that installed FreePBX 2.9 w/Asterisk 1.8? (Is there a place I can go to see which version of PIAF I have?)I'm almost positive it was PIAF Green from June, 2012. I have no need to do an in place upgrade, it is a relatively small and simple configuration, but I would like it if I could keep my recordings, trunks, extensions and the user settings for the extensions, etc. Can I backup these items, do a fresh install of PIAF, do all the patches and then restore my configuration from the backup? How is this accomplished? If not, what is the best way to move from the older install to the most recent?