Unable to insert background coluor

Hello friends again,
After altering everything that you guys told me to i am now unable to put a
background coluor on my homepage (whats wrong?) the background coluor should be
Blue but after uploading it to my server it is still white???
HELP.
http://www.sophiemacdougall.fsnet.co.uk

My problem is now ok with the background coluor BUT you are welcome to chuck as many faults with the site at me as possible its the only way i learn
Thanks guys EMMA X