Hi Maria,

The interface of SignPuddle is separate from the puddles contents.

If you used this link, you'd see the Czech interface:
http://www.signbank.org/signpuddle2.0/index.php?ui=6&sgn=36

But it you used this link, you'd see the English interface:
http://www.signbank.org/signpuddle2.0/index.php?ui=1&sgn=36

So if you ever find you can't understand the use interface, find the
"ui=" section in the url and change it to "ui=1" and reload the page.

Regards,
-Steve