Q1: The characters you entered are not part of the iso-8859-1 (latin1) charset which is the default setup for eZ publish. You will have to choose another charset in the settings/i18n.ini file, for instance use UTF8.
Q2: Currently eZ publish doesn't handle input like this properly without having Unicode on, do as with Q1 and choose UTF8.
Q3: You have to move the var/storage directory to the var/mydesign/storage, when changing storage dir. If not the images won't be found in the new path.
Thanks, it really worked (i used iso-8859-2). However i have another question. If i set Charset=iso-8859-2 in i18.ini and in site.ini then if i am right i don't have to set charset in template files ({*?template charset=iso-8859-2?*}).
And another question: i have the following error in debug after loading ezxmltext.tpl: