All I did was download the AR Code Manager.
Then, I compiled a .xml for (U), (E), and (J) cheats. And then just put those .xml's onto my G6 DS Real.
There was a thread explaining how to do it, but I guess it's gone. So I'll try to make a you a little walkthrough.
Before I go on with the tutorial, I uploaded my own cheat files(.xml's). So you can just throw these on your G6 DS Real:
http://www.megaupload.com/?d=OT3E3MUP
But...I'm also going to go on with tutorial, just so you know how to do it, or if anyone else wants to know how to do it.
Download the Code Manager:
http://www.megaupload.com/?d=MGF8N0QS
Now install the Code Manager onto your computer.
Now open the Code Manager. And under the part that says Subscriptions, you'll see Codejunkies US Games, Codejunkies EU Games, and Codejunkies JP Games.
Right click on Codejunkies US Games, and click Copy. Then go down to the box that says My Code Lists, and right click on my code list, and click paste. Let the cheat codes compile, and do the same for the EU and JP cheat codes.
Now, after you have compiled all the cheats, go into C:\Program Files\Datel, (or wherever you installed the Code Manager onto your computer).
In the Datel folder, you will see a file named Local_Codelists. And in there, you will see three .xml files. Each .xml is for the (US), (EU), and (JP) cheats.
Now, just put these on your G6 DS Real.
I believe I made a folder on my G6 DS Real called Cheats, and put the .xml's in that.
Now, whenever a new game comes out, wait a day or two, and new cheats will probably be in the Code Manager for that game. So in other words, update your .xml's every now and again.
Hope this helps.