How to integrate orbeon with Liferay

Hi
I am using Liferay 5.2.3 with tomcat 6 and orbeon 3.8 war.
I want to know how can i integrate both. I faced two issues with it.
1) when  i deployed orbeon war in liferay i gave me an error in the tomcat.
2) when i deployed it on another system it got deployed and i am able to see the portlet. but the problem which i am facing is that we are not able to create any form since there is no form builder or form runner application in it.
There are only sample forms which when clicked gives an "Portlet unavailable" error.

Can anyone tell me the solution for this problem??

Any idea or suggestions are welcome..

Thanks in advance...