In April, Facebook made some significant changes to their site which meant that some personal data was made inaccessible. If you had that problem, or just want to use your FB info elsewhere, try this site...

Give Me My Data | A Facebook application to reclaim your information

It allows you to access and save that data to your computer. This isn't an illegal operation, Facebook state in their Terms and Conditions that all personal data is the property of the the member. All the site does is allow you to export a copy of that data in a variety of formats. It won't remove anything from the site.