That's a bummer; my GO910 always wants to d/l an old W&CE map when I don't have one, only Europe (which seems a clone when HNR is not present, 885.4008 and 4009 for HNR) on the device.
In the past, someone posted 'how to change E to W&CE' but I didn't keep the instructions - something to do with editing the .pna and changing the Folder/File names? And also the build?
If I can't spoof 890 Europe to W&CE I'll leave the 885 version on, I've enough space.
If I can, I'll post how.