| Winter | |
| November 27, 2006 | December 16, 2006 |
| January 22, 2007 | February 12, 2007 |
| March 05, 2007 | |
| Summer | |
| July 01, 2007 | August 01, 2007 |
| Winter | |
| September 17, 2007 | October 15, 2007 |
| November 05, 2007 | November 26, 2007 |
| December 17, 2007 | January 21, 2008 |
| February 11, 2008 | March 03, 2008 |
| April 07, 2008 | |
| Summer | |
| no ladders this summer | |
| Winter | |
| September 22, 2008 | October 28, 2008 |
| November 25, 2008 |