Your Windows 7 is correct and all contained within C.
I'm not sure why you didn't wipe the HD or use the installer to delete all partitions before install since you apparently don't want to preserve the Vista Recovery Partition. The installer would then have issued the 100mb System Reserved partition which places the Repair Console on F8 Advanced Boot Tools.
To do it now requires using a bootable Partition Manager. Download and burn Free Partition Wizard bootable CD using Windows Image Burner: Partition Wizard
Boot PW CD, rightclick delete F, click OK.
Then rightclick to Resize C, drag left grey border to the left to take up deleted F space, OK, Apply all steps.
If Windows 7 fails to boot, boot DVD Repair console to Startup Repair - Run 3 Separate Times
You can delete everything in D to use it as a Data partition if you haven't already. I'm assuming you made your Recovery Disks before wiping the Vista recovery partition so you have a path back if you decide to sell or gift the machine but keep your Windows 7 copy.
If not you'll have to order them when needed, or find a Vista retail installer for your version to clean reinstall.