This thread is resolved. Here is a description of the problem and solution.
Problem:Translating 25,000 words
Solution:you should be able to use the language switcher at the top bar of the page regardless if the translation is in progress, but if indeed its showing empty then i suggest deleting the translation in progress and then doing the "duplicate" so you can afterwards follow the previous instructions and manually edit the translation adding it without having to go paragraph to paragraph
This is the technical support forum for WPML - the multilingual WordPress plugin.