We haven't officially released the URL parameters, but i will try to update Anthony's thread with that information when i get a chance
Unfortunately, if I understand you correctly, I don't think this is possible. The URL to load the interface uses a different method than the URLs to issue commands. With the information you requested you could certainly build a URL which would turn on a camera, but it would load an XML response to the command, not the iWatchMobile interface.
When you say there is no "Options" button does that mean the tab usually in the lower right of the screen is missing on your phone's browser? If you are missing this, what is your Blackberry's firmware version and your service carrier?