Ignore that jerk, you can bind both to whatever buttons you want (assuming you've already bound all buttons in "user 1 binds") by going to settings, input, input hotkey binds. Personally, I set 'fast forward hold' to the right direction on my N3DS right analog clit. Rewind is also available but it's a little buggy, imo.
Also, I'd suggest using the latest
stable build.