Installation is simple if you are familiar with deploying a war file into your application server. The basic instructions are the following:
For Jakarta's Tomcat, simply grab the war file, webtree.war, and put it into your $TOMCAT_HOME/webapps directory then restart tomcat. You can access the application as http://<YOUR_SERVER>:<YOUR_PORT>/webtree
There are so many application servers out there, we recommend you read the documentation that came with your specific server on deploying war files. Because war files are standard deployment units, it is usually one a one or two step process.
If you send us the instructions for your platform, we will gladly add them to this documentation.