I had the same problem", but error read "my flash disk\..." I noticed my pn 3000 had the sd card as "sdmmc disk"
In the folder "usb"on the sd card i changed the usb-as text file so that it looked like this: ExtRegEdit "\SDMMC DISK\Apps\USB\RegEdit.exe"
RegEdit "\sdmmc disk\Apps\USB\Usb-as.reg"
Message "USB: Active-Sync active"
wait 1000
Then i put the card back in the vdo and started the .exe file and it worked, i'm a total noob to this so dont know if this was the solution or i just had some luck, but you could give it a try. by the way thanks for the unlock.