Boot Camp Problems.

I had vista on my macbook with boot camp and i was planning on upgrading to windows 7. i used the disk utility to delete the bootcamp because i didn't have enough room for the windows.old folder and was going to do a clean install. i deleted it and now i only have the 1 partiton (mac osx). i didn't get the space put put back on my main drive and the 20gb partition is like it's it's still there but it's deleted.

You need to run the bootcamp assistant again and it will remove the partition.