Issue Centering Tables

Hey all,

I have been using the Tiny MCE editor but i am having problems with the table function cant get the tables to Center. this site is a project for a friend and a chance for me to learn drupal for my own site www.area51gym.com/prices, i have tried inserting the center code in HTML but still too no avail. anyone have any ideas would like to sort this out as it doesn't look too good. oh and i have tried using the center function when making the table.

sam