Configuring a WebApp with Orion in IDEA

I am trying to get my web app configured so that I can use the Orion plug in instead of tomcat (The production server is Oracles 9iAS, so Orion is the dev environment of choice to keep things consistent).

I downloaded the plugin, and IDEA sees that fine. But it's when I try to run the webapp that I get errors. Most common is one saying that a project under the name I am using has already been found.

I really need a kind of step by step guide to set this all up so that I can edit my stuff in IDEA and then run it in Orion. It seems like I am close, just not quite got everything configured correctly.

Can anyone help point me in the right direction?

Thanks so much,

Josh