First just let me say that I ran a Creative Live Motion under WinXP for several years and the driver was TROUBLE. Any time something was keeping the system from booting it would turn out to be that Creative driver. I'm surprised it works under Win7 at all!! If at all possible, replace the camera with something more modern.
The settings you want to access are stored by the driver in the Registry. You'll need to use Regedit to change them since the dialog box is disabled.
The registry path will be like this:
HKLM\SYSTEM\CurrentControlSet\Control\Class\{CLSID}
Substitute your camera's actual CLSID value for {CLSID}!! USB cameras typically have CLSID of:
6bdd1fc6-810f-11d0-bec7-08002be2092f
Once you get to that place in the Registry there will be a few "sub-keys" with names like 0000 and 0001 and 0002, etc. Use trial and error to figure out which one is your camera. I can't tell you because it's different on every system (depends what all you have installed and in what order you installed it).
Under one of those "000X" sub-keys will be a sub-key called Settings. It is in here that you will find all the camera settings, and they will have fairly clear English names. Make changes, reboot computer, see how it works, repeat until happy.
Here is the entire registry path to one of my cameras (again, note that the 4-digit number might not be the same on your system):
HKLM\SYSTEM\CurrentControlSet\Control\Class\6bdd1fc6-810f-11d0-bec7-08002be2092f\0005\Settings
Also, just in case you don't already know this, "HKLM" stands for HKEY_LOCAL_MACHINE
This info is from WinXP (I don't have Win7) but should be very similar on 7. SSE has Win7 - maybe he can correct me if I've said something wrong.
Best of luck...