It’s not the correct URL to use. If you jump on to a 12 year old thread, you may get stale information.
The correct base URL to use is the one you are seeing when you are here on this thread, which is: developer.nvidia.com
If you want to file a bug, the current information is here.
Regarding “searching the NVIDIA bug tracker” that is not possible. You can only see bugs you have filed yourself, and you need to use the updated instructions I linked to.