install question

I am *very* new to xwiki. I am trying to install it on a server which already has a postgres install. In order to start, I would therefore prefer something full java i.e. with hsqldb. Is there an existing archive *ready* to use with this kind of setting ? Or does somebody can point me to the modification I should do for this to work based on the standard war file. Thanks PS: I am running tomcat 5.0.28 PS2: I remember that such a version was available in the past - but can't find it now. -- Guillaume ALLEON http://guillaume.alleon.free.fr/