Help needed on .htaccess

[sharugan]

I have a website http://www.peoplebeep.com that runs on tomcat.
When user types http://www.peoplebeep.com i want to redirect to http://www.peoplebeep.com/dialogue/index.php so i have created .htaccess in route directory under public_html  dir
RewriteEngine On
Options +FollowSymLinks -Multiviews
#Discussions
RewriteRule (.*) /dialogue/index.php [QSA,L]
But when the user clicks on home in index.php page i want to redirect to
http://www.peoplebeep.com/home.php
How do i accomblish this.Do i need to write the rule in .htaccess file under /public_html/dialogue dir?
can any expert guide me