Once you have your image and your frame on the page, select both, and align the bottom edges. Then cut the image and paste it into the frame. Go to in5 > Interactive Widgets > Scrolling Frames and in the Universal Scrolling Frames dialog that appears, set the Scroll Direction to Vertical. The exported content should show the thumb (the part that moves along the track) at the bottom of the track. Sliding the thumb up will move the image so that you can see the top of it.
