If you are looking to increase your CTR, here are my 2 cents.
I think the current blue ad titles predominantly stand out as ads.
Firstly as regards your ad unit colors. My recommendations..
For the 336x280 ad below the video screen.
Border = "Your Page Background Color or FFFFFF"
Title = "008000" or a lighter green shade to blend with the cricket pitch color.
Background = "Your Page BG Color or FFFFFF"
Text = "Black 000000"
URL = "Black 000000"
For the 336x280 ad in between text..
Border = "Your Page Background Color or FFFFFF"
Title = "Try the color light brown or the same color as the starting text" ICC World Cup 2007"
Background = "Your Page BG Color or FFFFFF"
Text = "Black 000000"
URL = "Black 000000"
Alternatively you could use the same light brown color for the titles on both 336 units.
I would also avoid using the 120x600 skyscraper on the left. I would rather recommend you retaining only 2 ad units of 336x280 in the same positions as now. That is, one just below the video screen, and one in between the text. I mean, your current placements for the rectangular ads are fine. Just try changing the colors and doing away with the skyscraper unit on the left.
I hope these tips increase your CTR. Good luck
