If you dont like the terminal have a look round for a 'root mode' File manager program, it could be Konqueror or Dolphin or perhaps another. So long as you know the root password then you merely give that on start up and can navigate to the directory containing the file you created and drag and drop it on to the correct place in /etc directory. Of course you need the root p/w and if the file manager does not start with split view of two directories you will need to change the settings to do that. Some systems require you to be set up to issue the sudo command in the first place and if your user is not I think it just issues the command as the user and it will fail because you dont have root privileges.
Stuart
Hmmm...apparently Stu, 'root' is disabled by default in Mint 16. However, I read that 'Sudo' in the terminal acts the same as 'root'
Also in Mint the admin user password is the same as the 'root' one.
That's how I understand things anyway.
However, as the bluetooth adaptor is apparently not supported by Linux, I might just be wasting my (and your) time!
Thanks for the advice tho' buddy.