Mine has the url r4i-sdhc.com on it. Turns out they sold a limited edition with the b9s installer preloaded. Maybe I could find a copy of the firm floating around from that. I know there is one because of a picture on the site. (should be r4i-sdhc.firm)
I guess you have not read the link I provided before.
The .firm flasher is worthless to you, you need a .nds flasher that runs directly from the flash card the same way you play DS roms