A lot of relevant question Support for functionality, cameras, problems etc. go to the forum and I will handle them. The email support handles licensing and some other stuff. However, start here.
Yes, NCS 2 is under formation. We have some more functionally and changes that we want to do for NCS 2, but we do not have a date for that release. We have excellent suggestions from our users. Actually, we took a break in new releases after NCS 162 since we have done a lot during the last months and both the developers and users needed a break. The software works very fine and is very stable as it is now. If you buy a license for 64 cams now you will have the upgrade for no cost.
The manual is to be honest rather outdated since we have so much new stuff and changes during the last months. A new version is under development that will be completely in html format and therefore much easier to manage. In the meantime you are very welcome to the forum with any questions. Under Guides and Tutorials you have more information. The response time in the forum is just now about 40 minutes and is quite good. You can read about what users say here http://community.netcamstudio.com/t/netcam-studio-we-need-your-support/1865/34
Then it sort of depends on where you are located on the Globe since we have time differences. So sometimes it can be 30 minutes and sometimes around 8h depending when you post a question.
I hope this is to your satisfaction for buying a license and looking forward to meet you in the forum.