Bitnami changing ports error

Hello,

I did look in this forum and find about changing port using server.xml of tomcat (i'm using bitnami tomcat-stack) instructions, but it not works for me, then I try change the httpd.conf of apache2 (on line Listen 80) for other port, but it not works too.

I'm find the properties.ini, change it and not works too.

So.. How I can change the bitnami tomcatstack ports ?

I'm using vmware.

Thanks !!!