Am going to be upgrading a MICS 3.0 with NAM 3.0 in order to install PRI. I believe I can go to 6.0 directly, but am considering going to 4.1 then 7.0 as have spare 4.1 software. Question. One. Does FastRAD work with 3.0 and can you back up programming with it? Second is this the best way to upgrade without using upgrade tool i.e. NOT HAVING TO REPROGRAM? Since there is no PRI/DID's right now. The Target lines shouldn't be a problem. Also know I need to upgrade NAM BEFORE system.