plntzas,

Just follow my instructions above to download v18-key.zip file - that will update your MKIII from 3-1/21 to 3-1/40. You need to do this first because your unit will be asking for the Key-CD which is supplied in that ZIP file.

After you've upgraded to 3-1/40, you can then upgrade easily to 3-1/63, which is when you get the beautiful new graphical user interface.

If you have any questions, feel free to ask, because I did the upgrade myself yesterday.