Using Pentaho in a Server

Hi, first of all forgive me for this title because I couldn't think of a better name for it.

Anyway I pay for a hosting service, they use Tomcat in Linux. Let's say that this is my page "www.mypage.com". I'd like to be able to access Pentaho Community Edition by going to "www.mypage.com/pentaho" but I don't know how I'd do it because Pentaho has its own Tomcat and the host service "forces" me to use its Tomcat.

Any suggestion or a tutorial for that?