ok I don't know what this file is and I don't feel like checking either =P
Here is the file I use, it works.
http://c4-mtl.net/gp2xsound.wav
put that in the root, hold select+home (home buttons are lame)
and boot it up
Rammz: You need to film this, I'd love to see it hehe
When i get chance i will do so m8, i used to get the black screen and the only thing i have changed is the backgrounds on my f200 and this included the explorer one