aerial images on Palm Tungsten E2

[mr.c]

I have recently purchased The Earthmate BT-20 with Street Atlas USA 2010 Plus. I have downloaded some aerial images which display as intended on my PC. I have exported some maps that include the aerial imagery to my Palm Tungsten E2 pda. When I bring up the maps,the imagery shows on the screen as the map is loading or changing to a different resolution. Then the street map loads and the imagery is gone. Am I doing something wrong or is it not possible to have the street maps with the imagery on a pda? A second question: Can the phone number listings of 2010 Plus be used on the pda?