Windows 7: Cant see windows partition on macbookpro

I recentely bought a 640 Gb hard drive for my macbookpro, i was able to install mac os x with no problem at all, i than updated my mbp with all the updates they had on the internet.

i wanted to install widows 7 professional with the help of bootcamp, all went well till the process where it says "Start installation". i kept windows 7 bootable cd and hit on the start installation.

it booted from the cd and went on with windows installation, all went so far until when it reached on the process where i had to choose the partition, I COULD NOT SEE ANY PARTITION AT ALL.



i did all the steps carefully and im wondering where did i miss out..

if any help would be appreciated