I have an ICEfaces tree running in a portlet application. This tree is built from data retrieved through a web service. I followed the tree tutorial on the ICEfaces site to get the tree up and running but when there is new data for the tree it doesn't show untill I completely redeploy the portlet.
Can you post a small test portlet for us to look at?
The Component Showcase can be built and deployed in a portlet flavour and it has a portlet that shows off the tree. Maybe that would help.
The default build is for liferay.tomcat6 but there are other targets there for other environments. Once you've built the war, you can deploy it and take it for a spin. Source code is also included so you can take a look at both the page and the backing beans.
ICEsoft Technologies, Inc.