Hey, to get started easily, why not do this ;-)
java -jar winstone-0.9.10.jar -warfile <ITSNAT_HOME>/dist/itsnat.war
where /dist/itsnat.war would be the itsnat.war file which is shipped with ItsNat.
Now, point your browser to:
Now, you know what's working and whats not with Winstone. We just use the ItsNat core, and things seem pretty consistent!
(As always, see if your port 8080 is open, or disable firewall, if you're a noob :-)