And you'd better be eternally greatful for this Rebecca...
First, Assuming you have Red Hat 7.X (either 7.1 or 7.2), download the newest verion of apache (which is actually named httpd) from:
download the file into your /usr/local/src folder to make things easier.
once you have the file on your computer, extract it:
tar xvzf httpd-2.0.36.tar.gz
once this has taken place go to the directory /usr/local/src/httpd-2.0.36/ and type ./configure This will start the configure program to install apache.
After a few minutes the configure will stop and you can now type in the following command:
This will create an installation 'program' for your computer, the next step should seem pretty logical:
It will install the files it has just created. If you restart you may be able to load up fine with your webserver. Just go to the folder /usr/local/www/htdocs/ and there will be all your internet pages. Let me know what distrbution you have and I can let you know more speicifcally what to configure.