Not sure where you may have entered it as APRSISCE/32 will automatically determine it from the ME location, but…
To move ME, drag and zoom the screen until the center is where you want to be and hit Transmit. Answer Yes to Move ME to Center and you'll be moved.
Check Configure / Status and check the two comments entered there. The GridSquare checkbox is what will take ME and insert it into your status report, but this is NOT recommended as it's like saying "I'm right here" with a position beacon and then "I'm somewhere in this box" with the status report. Some APRS clients will ping-pong your location between these two locations.
Lynn (D) - KJ4ERJ -Author of APRSISCE for Windows Mobile and Win32