Need to export all messages/conversations of the game page on a social network

Hi, We have a social app (card game), published on a social network portal [login to view URL] where we have a history of conversations with users since 2010 (2322 pages in total, 10 messages per page). Since their built-in messenger is not easy to use (after opening a conversation it's not possible to go back to the previous page, instead it opens the first page), we need to get all the conversations/messages in some other format. As one of the option would be to export them in a readable format (grouped per user). As another might be to create a script to make it easy to read navigate within the page but I'm not sure about the portal's protection and if it's possible, so the export option might be the best. The format might be anything easy to use (csv or whatever, or even a HTML/XML file). The goal is to go over all the messages one by one and to save the important ones with valuable suggestions or bug reports. I'll provide the login information and will add it to the app's team, so you can access the messages. I'll pay once the messages will be exported and I've verified if they are correctly saved. Thanks! Andris