Nope. Such a thing would have to come from the camera/ recorder manufacturer or an enthusiastic hobbyist. But the original CS? Do you see how it is possibly completely unrealistic to expect such a plug-in to exist, given that this version had no video infrastructure at all? Sorry to be so blunt, but that's ridiculous...
Sorry to bump an old thread.
But yes, you can import a frame from a video feed. In Adobe Photoshop CS2, menu item File-> Import -> WIA USB video device (in my case). Screenshot below.
My guess is that the video device must support the TWAIN interface, since the "Import" menu item basically lists TWAIN compatible devices like scanners.
Sorry, the original poster specifically said his device has no TWAIN support. So, my reply may not be useful for him.