Well, I beat White in Japanese. Basically just look for the differently colored text and match it to something. Also, the games are pretty linear. Some people may have played an English patch, as well.
The games are pretty straightforward, so I usually knew what to do. I could mostly figure out which moves did what by looking at the power and pp and such. Also, if I didn't know where to go or what to do I looked up a walkthrough or something.