Mac Style Help!!

[usaf_wife10]

We just bought a new Mac, and I can't figure ANYTHING out. Well, I bought the shadow styles that Jenn made and I can't figure out how to get them to work in my PSE9. I tried a tutorial from digitalscrapper.com 4 times now and it's still not working. I'm about to burst into tears because I wanna play! Ugh! Can anyone tell me how to get this working?

I don't know if it matters, but I'm using the newest iMac on the newest update (i don't know the "technical terms" ha!) and I have PSE9.

Thank you for your help!!