Thanks for getting rid of the external link.
Please ignore the old-style language bar - it's only still there so that I can make sure things get moved into the new translation system. The new system makes maintenance so much easier! Above the old language bar you will see a link "Translate this page". That opens the dialogue where you will see individual messages for translation. After any future updates to the English page you can ask to see only the untranslate/changed messages, so it's much quicker and easier than trying to locate the change.
We're still trying to think of the best way of warning people not to spend their valuable time in the old system. If you have any idea of what would have helped you, please tell us. Should we, for instance, put a warning box as part of that language-bar template?