I did my PPL in Florida, at a CAA-approved school so I can't exactly comment from experience on the situation in the Netherlands.
However,
CBR - onze diensten - CCV - Luchtvaart - Examens -
The PPL(A) exams are indeed in Dutch. From CPL and IR onwards they're in English however.
If you would like to do the exams in English, or if you would like to do the English exams of a school that operates under the UK CAA, and have them recognized by the Dutch authorities (so that you can do the flight training and PPL exam in the Netherlands), I suggest you contact the CBR directly. They might have dealt with those types of requests before.
CBR - onze diensten - CCV - Luchtvaart - Examens - Bijzondere verzoeken -
they only have lessons in Dutch
Nobody cares how you gain the knowledge for the exams. There is no requirement for classroom courses, or specific books to read in JAR-FCL or EASA-FCL. So the fact that the lessons are in Dutch is irrelevant, as the lessons are not required. You can just as easily study the books. (Or use the lessons to get proficient in Dutch...)
A flight school will obviously not tell you this (out loud) because theory lessons are a nice source of income for them.
Having said that, if you do want to do classroom courses, I suggest you simply phone around. There are a lot of flight schools in the area, particularly if you're willing to travel to Lelystad for your lessons. There has to be one that can do the lessons in English. (My first suggestion for a school to call would be Wings over Holland.)
Another alternative would be to study the books on your own, and simply book an hour or two of private tuition with an instructor just before going to the exam. You can then go over all the material with him/her, and discuss anything you don't completely understand. This might be more effective, and cheaper, than spending evening after evening in a classroom.
jij woont bij Nederland nu!
... woont IN Nederland nu...