Ok, what port is your camera's PTZ running on? You could enter the port - if it differs from the default port 80 - into that 'PTZ not supported' prompt or into the corresponding field in "Universal camera" module's settings. By the way, at the bottom of the "Universal camera" module's settings there's a PTZ API choice - so please take a look if there are other options for your camera, and if any of them works for you.
By the way, can you control PTZ of your camera in any browser apart from Internet Explorer?
If the port/API tip above doesn't work, please
contact our Support Team and let our operator access the camera to investigate if support for your cam's PTZ can be added any time soon.