Custom Career not working? Possible Rabbithole issue...

This question is about the Sims 3.  I have the sims 3 base, ambitions, generations, and recently purchased and installed Supernatural.  I've been attempting to make a custom career through a tutorial I found on The Sims Wiki.  I didn't have much of a problem following their instructions - got to a part that said I had to specifiy the Rabbithole (the location in-game that I would click on to send my sims to this custom career).  I have Supernatural expansion pack installed, and it said that I would need to specify it as "ComboPoliceCityhallMilitary", so I did.  THe last step of this tutorial said that I would have to load the location in the game, jot down the numbers it would show, and finished editing the package file.  However, the career is not showing up in-game.  When I first load the Sims 3, it shows that I Have it installed ('Mod Scripts found') - but when I click on the Rabbithole, nothing shows up.

Please help, as this is incredibly frustrating after spending a few hours working on the code.