Is there a way to export chat history in Skype 5.2.x for OS X?
If you have the OS X Developer Tools installed you can use this terminal command:
sqlite3 ~/Library/Application\ Support/Skype/<YOUR SKYPENAME>/main.db "SELECT author,timestamp, body_xml FROM messages WHERE dialog_partner = '<OTHER SKYPENAME>'" > ~/Desktop/skype_chat_history.txt