yes the name change is normal (it depends on the number of posts)
as for the first question, send a PM to Petra http://board.freeones.com/private.php?do=newpm&u=114093
is she still an active model? yes she is! http://www.sexy-zdenka.com/
some new sample pics http://www.sexy-zdenka.net/home.php?id=mydiary&page=2010-08-22