Can you help me too just got R4 and need to know will you kindly forward me details so i can do same thanks
ghl - if you haven't got a cartridge then get one. Then you just copy the games straight onto the catridge assuming you have followed the instructions that come with the R4. It's actually way too easy to mess up.
You can just follow the manual from the manufacturer's website. http://www.r4ds.com/product-en.htm#a3
The R4 is becoming pretty rare, so you might have to buy a different card such as TopToy or M3 Real. You can find them at many different places, but one of the cheapest is dealextreme.com. As for the games, simply do a google search for "nds roms". You'll find a few places that offer them.