what to do....Iam a first time user with this site

Hi therei have downloaded the RAR zip file and now need to know what to do after I have downloaded the game in order to play it on my DS...just wondering if you can step me through the processThanks
Jodie :o)

Just extract the .rar using WinRar to get a .nds file, put that on your media card (MicroSD etc.).