Hi
Welcome to the main CyberLink forum.
Powerdirector 10 has 100 tracks with the higher numbered track being the dominant one. By default only 2 Video/Audio tracks display.
1. Open PD10,
2. Place the sample video into Track 1
3. Stretch out the track - expand them using the slider control, bottom left.
4. Place one of the sample images into Track 2, inset it about 5 seconds.
5. Now go to the preview player and play.
The video will show for the first 5 seconds, the audio will then continue with a sample image showing, followed after 5 seconds the video again until the end.
Placing an image over an audio is just the same - the dominant track image/video overwrites the lower numbered track.
Dafydd