PHP, APache and Mysql on Redhat linux 7.3

I am trying to move a web application from a win98 machine to a linux (redhat 7.3). This application works as designed on the win98 box. I cannot get it to work properly on the linux box. It appears that despite php, apache and mysql being installed on linux they are not correctly integrated. I have made the php.ini file look the same as the one on the win 98 box. I do not know how do do this for the apache config file. The default file which is on the linux system has a number of </IfDefine HAVE_PHP> </IfDefine> and similar sections. It would appear that somewhere these variables have to be defined . Can anyone advise on on what I need to do to get the php working with Apache etc? Currently the web site is partially working with a lot of php code being displayed as source. How do I check php is working independently of Apache? I installed the rpms for mysql : MySQL-MAX -3.23.52-1 MySQL--3.23.52-1 MySQL-Client-3.23.52-1 MySQL-Shared--3.23.52-1 For Apache the rpms are: apache-1.3.23-1 apacheconf-0.2.2-2 For PHP the rpms are php-msql-4.1.2-7 Are there any more rpms I should install? What configurations steps are required to make sure they work together? Any help gratefully accepted. Regards Peter Goggin