Photoshop CS4: Frames to Animation

Hi,

I used to use regular Photoshop CS than I switched to Photoshop CS4 (i wish i had CS still) and I can't seem to be able to import video file frames as an animation, just a video to animation frames. Is there anyway to copy frames to an animation? I don't really understand the whole using the video to get frames. The program says that it might take too long to do anyway. Is there no option to do this anymore in the newer versions of Photoshop? It's quite frustrating, I might say.

Thank you to anyone who can help me!