is this new content?
this change wont fix content that was already broken, it will fix it so that new content is added correctly.
also, the charset meta tag will need to be changed to utf8.
change:
<META NAME http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
to:
<META NAME http-equiv="Content-Type" content="text/html; charset=utf-8" />