1) If you trade a Pokémon from a Japanese FR/LG to an Eng Ru/Sa, is it true that it keeps Japanese writing for things like nature and attacks?

2) Is it very difficult to play through the game if I don't know any Japanese at all but have played RBY dozens of times and pretty much know the game by heart?

3) Does anyone know of an online English walkthrough and guide for this game? I know you can't post the link here, so if anyone knows of one, please PM it to me. If you have problems getting it through (I have been having problems with my box where it says it's full when it's not and such), please post that you do here and I'll do my best to resolve it.

4) Once you trade one old species to Ru/Sa, does your Pokédex immediately expand for #202-#386? If not, what happens?

Thanks. As you can probably guess from my questions, I am seriously considering importing the Japanese FR/LG but I think I might be COMPLETELY lost in it since I have read up on Serebii.net and there are a lot of differences in basic gameplay from RBY.