Problems installing Java

[Jared Buck]

> Ok first thing first and do an rpm -e and remove the java instance you
> installed because well it does not work.
> 
> Then do this:
> 
> http://www.fedorafaq.org/#java
> 
> Add dag's repostiory to your yum.conf but do NOT enable it by default.
> 
> yum --enablerepo=dag install j2re mozilla-j2re
> 
> That is that.
> 

How do I add the repository to the yum.conf file?  I don't know how to
do that.  I'm a complete newbie to FC3 and need step by step
instruction.

Jared