I've had similar experience to Peter recently. Washed out image, different targets so not sure if shifting coords will help. I believe AstroPlanner's images are downloaded from POSS, Palomar Quick-V Survey, HST Phase 2, and SDSS for selected areas. You can set which ones you want to use in the preferences. Most of mine, and looks like Peter's above, are from the HST source.
To get around the "washed out" image problem, I've tried using images downloaded from web, but the SGP framing wizard seems fussy about what images it'll accept. Looks like only 16 bit FITS with RA/DEC coords in the headers. Would be handy if it would allow, say, JPG files downloaded from web or whatever, you could plate solve them and save as FITS with headers needed etc.