I just checked for you and as it turns out we only ever keep one rom in that folder. So even if you could access it, there would only be one file there. I'm not quite sure why we aren't adding these to our GBA collection on the site, but I'm guessing it's probably because we don't have anyone to update it. Your best bet to get the files we've had on there is to ask someone (perhaps MasJ) to get them on the website (just as a download without any kind of description) or the EPBT tracker.
-Mason Gray: Less vowels, same great consonant taste.