There's no English version of it. Nor it will be ever out, probably. Sorry.

That link you provided are programs that let you dump real DS cartridges in images on your PC, that can you can then use with emulators or flashcarts.

 

Not much. You can only transfer it on your PC as a ROM (a game image).

 

Yes. Unless someone which knows Japanese and/or DS romhacking ever translates it.
Which is most unlikely, seeing as the few Japanese Translators and/or Rom Hackers around here are already occupied doing other projects.

 

You've already posted in the right forum section. If there's someone interested, you can be certain that they would have already expressed interest in the game.

By the way, you can try to contact them via PM if you like, just search the topics in this section. Be warned that probably they'll refuse, as most of them don't like to have requests for a game They usually translate a game only if they feel like doing that