Hmm. Now Bing Translate also breaks the synths for me.
Photosynth team, I don't know whether there is something that you can do on the site to keep this from happening or if it's something that needs to be changed on the translation sites' sides, but please be proactive in seeing that this is fixed.
Being that Photosynth is part of the Bing mothership, I would think that if hiring a team to localize the site and guidance materials is too costly for your budget, you could at least provide some sort of Bing translation service integrated with the site as part of its design - not necessarily with a lot of Bing branding, but as a very real and necessary service to your user base.
It is most unfortunate that those who speak other languages cannot even view synths and panoramas in a machine-translated copy of a Photosynth URL.