As you figured out, this is a bejeweled game for girls. The game runs on two levels, each level having a bonus round where you can collect more points. In the first level you will need to select with the mouse groups of three girls similar to that found at the top left of the screen, and on the bonus round you will have to hook as many girls as you can with a cord.
In the second level you have to match hairstyles for each girl separately. Collect as many points to get into the top 20 players standings!