Thread:Project:Support desk/template "Language" shows only on Main Page

Hi, 1) I have one site named   (pisecek is not main site) and I tried add   on the top of side   - I can see English, Czech (czech is main lang.). I click on English and its re-directed me to Main Page but I would like to redirect into English version of   - how to edit code for redirect on english version of  ?

2) How can I automatically add language bar on top of every side? I found in manual code ", Main Page itself" but this doesnt work for me

Thank you