I agree with Dale, if you are making a different language version of the same site you do not need another installation of mojoPortal. You can install it in the root not in a folder and create the default language content there, then using folder based child sites you can create the other languages in sub folders as described here without needing additional installations of mojoPortal:
http://www.mojoportal.com/supporting-muliple-languages.aspx
Hope it helps,
Joe