I just installed this plugin on a fresh blog and the stars aren’t appearing on my posts. http://wordpress.animescreenies.com/ I can see the stars in my admin panel. My folders are 755 and files are 644
There is an extensive FAQ with description of potential problems. And your post is too generic, there is nothing for me to go from. I need more specific details, because plugin works just fine. If FAQ doesn’t help, your problem is more specific (even though I bet that FAQ holds the answer), and I would need more details.