Help! Im new and my downloads aren't working...

Please help, Im new to this site. I've downloaded NDS roms, dowloaded winrar, extracted the file so that it is now an NDS file. added to my TTDS card and I can see the game on my menu - just can't get it to open. when I look at my micro sd card - their is now a SAV file created - but still can't play....
What am I doing wrong?

https://www.romulation.org/forum/index.php?topic=1462.0

Same here... but mine doesn't even APPEAR in the menu! It's like some glitch of somethin'... Anyway, I agree with the one who posted this topic. I have no idea why. It happened to be able to go to my file, but boom! It never appeared on my ds. I need the same kind of help, people.

blankninja, you probably need to Extract the files. Read the WinRAR Tutorial https://www.romulation.org/forum/index.php?topic=3880.0

Try updating to the latest firmware. I had the same problem and then I updated firmware and now it works fine.
You can find the firmware on here --> http://www.linfoxdomain.com/nintendo/ds/