Java won't work for my FC3

[mbrown420 at sympatico.ca]

Hello, I don't know the address to brows this forum so i'm sorry in advance 
if this is posted in the wrong area.

I have FC3 installed and i have installed the j2re .RPM  from sun website 
and it said to restart the browser etc that it was finished. I restarted the 
browser and i still have no java :(
i found a post to Yum it and i copy and pasted the command and it said it 
installation complete but it still doesn't work:(
how can i get Java to work?