Do you have any info on the digi frame you bought? A make and model would help quite a bit.
Also, the picture quality is not because of low resolution, but because of settings. See if there is a "nature mode". My GE Camera just has a picture of a flower. My old aiptek had a slider directly attached to the aperture. Also, half shutter push focuses the camera. Make sure the center of the photo is right on the thing you want to focus on (here: primarily the connectors).
Good photography is about knowing your camera.