Regarding tomcat server which comes with Pentaho CE 4.5

Hi All,

I am new to Pentaho BI, i have tried to integrate my Java web application with tomcat (which comes along with BI server) , but when i deploy it and restart tomcat, its not getting started, my main aim is to use only tomcat within single system, so
Can i integrate Pentaho bi server with already existing tomcat, which i already had it prior to installing Pentaho BI ?

Regards,
S.A. Mateen