The problem is when you vote and go back to that page, the stars are blank. I asked the creator (AKA the one who helped me.) and got this respone:

To display a number of stars you need to query the database to get the current rating and then in the page include a switch statement:
switch(currentRating)
{
case 0: // don't do anything
case 1: // set the 1st div's background to filled star
...
case 5:// set all 5 stars to filled star
}