Sonic and Mario olympics download help!

HI I've downloaded this file about 3 or 4 times now. When i put it on my R4 card and try to play it i get this message'Could not load data. Turn the power OFF and re-insert the game card.'Does anyone have any advice as to how to get this file to work please?

Did you extract the rom from the .rar file?

yeah did it exactly the same as any other game ive put on thats why im so confused.!!!!!! ???

Did you update your firmware?

I hadnt but i have now. Sorry a complete newbie to this not very up on technology lol. Oh and its worked Thanks you!!!!!!

could someone send post a link to the new firmware i need

That depends on your flash cart mate, check out http://www.linfoxdomain.com/nintendo/ds/ though, it has a collection of flash cart software.Edited with correct link. :D

I think he means http://www.linfoxdomain.com/nintendo/ds/