I currently have the exe for version 5.00.20 and it works but its not smooth and crashes when I try to enter POI so I wanted to use 500.30

I have tried the DIY but cannot get it work on WinCE5. It keeps asking for the garmin SD card. What am I doing wrong? I have an map unlock and SW unlock key files in the Garmin folder.

My storage card is called "StorageCard"
DIY Changes using Ultra Edit
\StorageCard\Garmin\
/StorageCard/Garmin/
/StorageCard/Garmin/gpx/
/StorageCard/Garmin/gpx/current.gpx

Please help. Thanks in advance.