is there any known incompatibility between the camera web interface running on Vista operating system?
Officially Vista is not supported because of some incompatibilities.
It may work in many instances, but not guaranteed. So will Windows 7.
There is a Bug filed for the Support Request.
CSCta71506 VSOM is not supported for use with Vista
This has not been resolved yet.
In order to be completely safe, Use WinXP, SP2 only, with IE 6 or 7 ONLY.