WINRAR - HOW TO UNPACK DS GAMES SO THEY WORK!!!

Hi All, been getting on really well with the Ds downloads however,
stumbled across a problem :(Some DS games that i download wont work properly (i.e Alice in Wonderland) and i can remember reading and doing something which i got of this site which made the games work, however, i have
forgoton how to do it and i cant find the post on here anymore, can anyone help me
please??I know it was something to do with opening Winrar, opening MaxCross Method,
opening Ds Lazy, unpacking the game, deleting the arm 7 file and replacing it
with the one in max cross etc etc!!!I did do this before, and like i say it did work, however, i am trying to do it
now and when i go into Winrar and open it, i cant find the option to open
MaxCross, which is so frustrating!!! ???Does anyone know how i do this, were is the option to open Maxcross on the Winrar page? Or do you know of any other way to get the games to work??Look forward to hearing from you all and many thanks in advance,
Stacey.

What flashcard do you have? I just do this: Open with WinRAR > Extract .nds file and I'm done.

maxcross has nothing to do with winrar.

actually... one of my harry potter games won't work, when it did before I updated my firmware... but that's unrelated to this.You just unpack the rar file and put the .nds file on your cart. That's all there is to it.

Here's the RAR tutorial.
http://forum.romulation.net/index.php?topic=3880.0