Hi Angus
In PSG you will have to do this over two slides, as you do not have 'keyframes' in PSG.
Open slide 1 with the full frame picture. Double click on the picture in the timeline. Go to the 'Motions' tab and using 'pan' and 'zoom' shrink the picture and put it in the frame corner, using the 'ending position' controls. Now 'copy to next slide'. You should now have slide 2 with a copy of the reduced picture in the corner. Close the motions effects.
With the control key held down, drag your second picture onto slide 2. Ensure this pictures is selected in 'Selected Layers'. Double click the slide and enter the 'motions effects' screen again. Using the pan and zoom controls of 'starting position' reduce the picture and put it in the other corner. Close the motion effects box.
Hopefully you should now have what you wanted.
I use PSP, and I hope the controls are the same in PSG
. Someone will put me right if they are not.
Brian