Create a 50x50 pixel .png file made up of colors per pixel. You can load up/create the map data by looking up the individual pixels.

A 50x50 pixel map is less than 2KB

Hope that helps.
...

C:\Nokia\Devices\Series_60_MIDP_SDK_for_Symbian_OS_v_1_0\bin\emulator.exe -Xdescriptor:${resource_loc}

... should help.

Selecting a .jad and running the emu as external tool works great.
...

Same problem down here...

Noticed that the Series 60s have Nokia UI 0.9.2 instead of the Nokia UI 1.0 that the 7210 emu has. It might be possible that only the newer phones and N-UI support a...