The Palm Beach Post reported the discovery of the missing girl named on the poster on Feb 3 10. That's apparently the first time she ran away to FL. A photo there closely resembles the girl on the Nevada missing poster of Aug 2010, which strikes me as very curious and helps to discount the possibility of a hoax.

I am hesitant to post a screen grab here because two minors are depicted in the article. It is easily found by searching the missing girl's name and the newspaper.

The radio interview here is also interesting:

http://thedailyhotnews.com/bieyanka-moore-really-missing-15-year-old-charrida-smalley.html