Yugioh 5d's rom

Yeah...so i read the how to ask for help and all that jazz...no help. Anyway, I downloaded the lates no$gba on march 29, and then came to romulation to download the 5ds jap rom. I just HAD to download winrar's trial to even extract the files, then started the emu. It tells me it can't read data, and i have to restart the ds. So, the problem is i don't know how to even use the ds emu. Yep, total nube, and I just wanna admit that i don't know what to do. Maybe someone who actually knows what they're doing can help me out a bit.

ye i got this problerm tohow do i play the game

ok, so i did everything over. Got the most recent no$gba, this time I saved the rar in the same folder as the emu, then unpacked the rar in that same folder again, then ran the emu, and selected the nds file.

Make sure you have no$gba v2.6a, not v2.6.
Go to http://nds-gamers.webs.com/downloads.htm to download v2.6a