Problems with re-doing a partition with Boot Camp 4.0.4

I have a 15" MacBookPro with a 2.33 GHz Intel Core 2 Duo, about 6 years old. 3 years ago I installed a new hard drive (500 GB) and partitioned it to run Windows 7 (32 bit). I've had issues with connecting to wireless networks and with bluetooth accessories, so decided to redo the partition and re-install Windows and drivers. I used Boot Camp to restore the disk to one partition with Mac OS in extended (journaled) format. When I tried to run Boot Camp again, I set the partition to 350 Mac, 150 Windows, and tried to install Windows 7. I get this error message:

When I go to disk utility to format, it is not allowing me to determine any partitions. This is what I see:

Any suggestions on how I can fix this?