We use the roster (in english) for our guild and have some weird language problems. Most members use the english client of WoW and there's no problem, but some use the german client and when they upload their profile to the roster, it is displayed in german in our english roster.

Is there any way to fix this, beside making our german members use the english client?

Roster url:
http://www.iflroster.starbearer.de/roster/index.php

examples:
Player Elohir uses german client.
Player Starbearer uses english client.

This is normal behaviour. We do not translate tooltip and other information, we only display it.