Do you have a replacement title screen and how many signs are there?
There are only two signs in the game that I recall, and they both just equate to "hard route / easy route." Usually you'll get more gold for going left. Although, I think the second fork has a treasure chest with two hearts if you take the right path. It's hard to remember at the moment.
Oddly enough, the merchant actually says to go right in Japanese, but it didn't make any sense because the right path had nothing and the left had a treasure chest, so I changed it when I got a chance to look back over it.
As for the title screen; I had thought about trying my hand at a photoshopped mock-up of an English version, but decided it wasn't worth expending the effort on if we couldn't hack the title. I still want to translate the instruction manual, though; so I'll probably go ahead and work on a logo if I can get ahold of some scans of the instructions. I'd be happy to help get it in the game if someone knows how.
P.S. I don't suppose any of you have scans of those instructions, do you? I have a copy of the game, but no scanner...