Al principio de vuestro style.css, modificar las rutas donde aparece url(http://helektron.com/wp-conten.... por vuestras rutas. Añadir:

.PSR_stars {
		  height: 15px;
		  overflow: hidden;
		  padding: 0;
		  margin: 0;
		}
		* html .PSR_stars .star {
			display: block;
			position: absolute;
			height: 0;
			width: 0;
		}
		.PSR_stars input {
			display: none;
		}
		.PSR_no_star, .PSR_half_star, .PSR_full_star, .PSR_no_voting_star, .PSR_half_voting_star, .PSR_full_voting_star {
		  display: block;
		  float: left;
		  width: 17px;
		  height: 15px;
		  text-indent: -1000em;
		  text-align: left;
		  background-repeat: no-repeat;
		}
		.PSR_no_star {
		  background-image: url(http://helektron.com/wp-content/plugins/post-star-rating/img/stars/no_star.gif);
		}
		.PSR_full_star {
		  background-image: url(http://helektron.com/wp-content/plugins/post-star-rating/img/stars/full_star.gif);
		}
		.PSR_half_star {
		  background-image: url(http://helektron.com/wp-content/plugins/post-star-rating/img/stars/half_star.gif);
		}
		.PSR_no_voting_star {
		  background-image: url(http://helektron.com/wp-content/plugins/post-star-rating/img/stars/no_star.gif);
		}
		.PSR_full_voting_star {
		  background-image: url(http://helektron.com/wp-content/plugins/post-star-rating/img/stars/full_voting_star.gif);
		}
		.PSR_half_voting_star {
		  background-image: url(http://helektron.com/wp-content/plugins/post-star-rating/img/stars/half_voting_star.gif);
		}
		.PSR_votes {
			padding-left: .5em;
		}
		.PSR_moment_scores li {
			position: relative;
			height: 2.2ex;
		  list-style: decimal outside;
		}
		* html .PSR_moment_scores li {
		  list-style: none;
		}
		.PSR_moment_scores .trend_up, .PSR_moment_scores .trend_dw, .PSR_moment_scores .trend_eq {
		  display:block;
		  width: 14px;
		  height: 15px;
		  overflow: hidden;
		  text-indent: -100em;
		  float: left;
		  background-repeat: no-repeat;
			margin-right: .5em;
		}
		.PSR_moment_scores .trend_up {
		  background-image: url(http://helektron.com/wp-content/plugins/post-star-rating/img/stars/up_arrow.gif);
		}
		.PSR_moment_scores .trend_dw {
		  background-image: url(http://helektron.com/wp-content/plugins/post-star-rating/img/stars/dw_arrow.gif);
		}
		.PSR_moment_scores .trend_eq {
		  background-image: url(http://helektron.com/wp-content/plugins/post-star-rating/img/stars/eq_arrow.gif);
		}
		.PSR_moment_scores .PSR_container {
			position: absolute;
			top: 0;
			right: 0;
			width: 21ex;
			text-align: right;
		}

**********************************

Al final de vuestro style.css, sin cambiar las rutas. Añadir:

.PSR_no_star {

  background-image: url(/wp-content/plugins/post-star-rating/img/stars/no_star.gif) !important;

}

.PSR_full_star {

  background-image: url(/wp-content/plugins/post-star-rating/img/stars/full_star.gif) !important;

}

.PSR_half_star {

  background-image: url(/wp-content/plugins/post-star-rating/img/stars/half_star.gif) !important;

}

.PSR_no_voting_star {

  background-image: url(/wp-content/plugins/post-star-rating/img/stars/no_star.gif) !important;

}

.PSR_full_voting_star {

  background-image: url(/wp-content/plugins/post-star-rating/img/stars/full_voting_star.gif) !important;

}

.PSR_half_voting_star {

  background-image: url(/wp-content/plugins/post-star-rating/img/stars/half_voting_star.gif) !important;

}

.PSR_moment_scores li {

  font-size: 1.2em;

  margin-left: 2em;

  height: 17px;

  list-style: decimal outside;

}

* html .PSR_moment_scores li {

  list-style: none;

  margin-left: 0em;

}

.PSR_moment_scores {

  margin-left: 0;

  padding-left: 0;

  width: 100%;

}

.PSR_moment_scores .PSR_votes, .PSR_moment_scores .PSR_tvotes{

  font-size: 11px;

}



.htmlarea .toolbar img

{

    padding: 0;

    margin: 0;

}