Crystal Reports Server 2008 V1 - Installing newer Tomcat versions

Just installed Crystal Reports Server 2008 V1 on a Windows Server 2008 Standard R2 64-bit Intel host. Noticed that the Tomcat it installed was version 5.5.20. For security purposes, our firm requires us to upgrade to the newest Tomcat, which is now 6.0.26.

Does CRS 2008 work with Tomcat 6? Is there instructions on how to configure it to use a newer Tomcat?