[xwiki-users] Integration of my webapplication with xwiki.

i have my banking webapplication on tomcat. i want to host my application help on xwiki which will sit on another server(probably xwiki will be having its on app server). Basically what i have to do is i want to provide a link on my banking application on click of which i want to take it to wiki help(help shoud not ask any credentialsat http://platform.xwiki.org/xwiki/bin/view/DevGuide/WebHome) though it should ask for credential if i hit my xwiki URL directly.i am not getting how to start it?i have gone thru xwiki devguide but could not get much out of it. It would be great if somebody can give me heads up how can i can i start it at high level, it would be a great help. As xwiki site states many tools to download like manager,enterprise,platform. which tool one i shoud start with and what should be the starting point in that? i want to give the users to modify the wiki page on the basis of roles in my banking application. So my application and xwiki has to interact a lot. looking for how we can proceed for this. My application is using struts 2. Another question i have is once i dowload xwiki enterprsise, should i host in seperate tomcat or downloaded xwiki application will have its own webserver. Its really urgent for me. Looking for quick reply Thanks in advance Mohit GUpta