Partition Problem

[nerfstar]

Hey i just recently used boot camp to install windows 7 on my macbook pro, but i realized i partitioned to little of space (20gb), so i tried using winclone to make it a bigger size. When i saved my files and deleted the partition to make it bigger with disk utility, i tried to slide the bar down over the gray space to make it a complete mac partition, but it wont let me. (see picture) Then i went to boot camp assistant to try and make a new one and it wont let me do that either. (see picture) Ive read up other problems like this and i found that my disk needs to be repaired so i tryed rebooting it with the install CD and using disk utility but it also wont let me then. I hope there is a simple solution if any of you can help me.

 

[-tWv-]

What exactly did you try to do with disk utility when you rebooted?

Also, do you have a backup drive. If you don't, get one.. It's always good to have a backup and you may have to use it if worst comes to worst.