jeremy: It still says Job Opp #2
Where do you see this?
In the example code I gave you your new opportunity screen shouldn't have an input field for opportunity name, this area should be filled with when the page loads. Does this happen?
I suspect you're seeing Opp #2 from the Opportunities List screen - have a look at my screenshot below, this is a snip from my Opportunities List screen.
I still see the Opportunity Number in the second column but my Opp name is showing the changes I made, CR2012-24.
jeremy: Is there a step that I am missing?
It's possible - double check the changes you made. If you made the changes correctly then you should see the opportunity name change as soon as the page loads. If not then it's possible you missed a step.
~C