Please help make columnwider

[Nicole2009]

I downloaded the following template and would like to take this opportunity to thank you for it:
http://www.freewebsitetemplates.com/...w/booksonline/

I would like to widen the first colum (i.e. the blue navigation bar with 4 lines on the top left) and make it about twice the width. This would then make the top banner more narrow.

I have tried everything but have not managed to make this change.

I would appreciate it if someone could help me.

Thanks!

[sawhtoo]

first:
adjust #header width and left value.

then:
then adjust #navblue width value.