Sorry for the issues you are having.
1. The NOVA-T Stick should work fine on 32-bit or 64-bit and has done for many years. Are you using the latest CD 2.4d from the web site? When you say "lock" is the entire PC locked forcing a hard power off or is only the application itself locked?
2. Are you in the UK? It should sort them by their LCN automatically. If not try deleting all the channels and do a re-scan it should indeed put them in the right order.