utf 8 - Problem with encoding

i have written my HTML code with the meta datas
of

meta http-equiv="X-UA-Compatible"
content="IE=EmulateIE7"
meta http-equiv="Content-Type" content="text/html;
charset=utf-8"
meta http-equiv="cache-control" content="NO-CACHE" />meta http-equiv="content-language"
content="pt"

it is in UTF-8 format but when i
opened this page in IE6 browser the encoding type is western european(ISO) so it shows
portuguese language as informação originaly the string is
informação

what
could be the problem

please guide
me