Hi!
Documentation on web site is quite outdated and for 1.0.x branch. Since today 1.0.x version superseded completely by version 1.2.0. We are in progress of moving all documentation to wiki: http://wiki.netxms.org. After some time it will contain up-to-date documentation for current version.
For adding node in new version, you should select container where you want to create it, right click on it, and select "create node".
Network discovery is off by default, you should turn it on via Configuration -> Network discovery menu. Please note that if you are using passive discovery mode, NetXMS should have SNMP access to network devices to get correct results. Alternatively, you can use active discovery, when NetXMS server just pings all IP addresses in given range and adds anything which responds (unless you define discovery filters).
Best regards,
Victor
