A lot if not most of the talkgroups are using P25 phase 2. The Pro 197 cannot monitor phase 2 traffic, only phase 1. If you wanted to listen to phase 2 you need a phase 2 capable radio like a Uniden 436 or 536 HP
Your scanner has some value if you put it up on Kijijii. It could help finance a newer Phase II capable radio if GO Buses are important for you to monitor.
No, there is no voice channel decoding software out there yet for using your PC to listen to P25 Phase 2 transmissions.... sit tight, it will happen someday.