this isn't that complicated.
http://wiki.gbatemp.net/wiki/AKAIO#Quick_Guideformat the msd card using the panasonic formatter.
download a clean copy of akaio.
extract the archive and put the _aio folder and akmenu4.nds files in ROOT
everything will work. if it does not you have a clone, your msd card is bad, you missed a step, you left out a file, you didn't format, your card has contact issues, etc.... all of which are NOT akaio related.