If you change your display language on your site (by clicking on the small flag in the bottom corner of the site), then you can then create a chart in the language that you are viewing the site in.
If you entered your information in Czech then it will remain in Czech, because changing the language does not change the information in your tree. The chart gets the information from your tree. Only the title of the chart will change.
I have not entered the information in Czech, the whole diagram is in Czech, everything - even lables like "Born", "Death", "Died", even "Created by MyHeritage.com" is in Czech language.
No to mention that MyHeritage.com converts the date format from 26.5.2010 that I enter to 26. Kvě 2010 for no reason - this date format is not used in our country.
When you create a tree online, its data language is determined by the language of your site when it was created. I can see that the language of your site is Czech, and so is the data language of your trees. That is why the chart is in Czech. Things like the labels you specified won't change when you change the site display language- that can only change the language of the title of the chart.
Regarding the problem with dates in Czech, this is a bug in our site. The developers have been notified and are working on fixing this problem. I will update you regarding this matter, and apologize for the inconvenience.
Let me know if there is anything else that I can help you with.
