LAMP Server setup help

[Randy Patterson <tech@patterson-pcc.com>]

Hey,

I have setup a test system on my home network in the past to develop & test 
PHP apps by installing an ISAPI PHP dll in IIS. It worked great but now I 
trying to setup a LAMP server on Debian/Lenny. I ran the following command;

aptitude install apache2 php5 libapache2-mod-php5

But got the following error message;

Setting up apache2-mpm-prefork (2.2.4-3) ...
Starting web server: apache2apache2: Syntax error on line 187 
of /etc/apache2/apache2.conf: Syntax error on line 3 
of /etc/apache2/httpd.conf: Cannot load /etc/apache2/modules/libphp5.so into 
server: /etc/apache2/modules/libphp5.so: cannot open shared object file: No 
such file or directory
 failed!
invoke-rc.d: initscript apache2, action "start" failed.

The error is pointing to this line in the httpd.conf;

LoadModule php5_module  modules/libphp5.so

But this directory or file don't exist in the /etc/apache2 directory.

Not sure how to fix this. I'm a newbie when it comes to the LAMP server apps. 
Any help would be appreciated.

Thanks, 
Randy