when I add text into the CMS
-- what are you using to add text? Which program, what character set is it set to, and how does the CMS save entered text?
-- how is the server serving the page? (regardless of any meta tags in the HTML, the server rules all)
From what I can see, this is a Microsoft IIS server running ASP.NET in the back and serving pages as UTF-8. This leaves me to believe your trouble is purely on your end (either the CMS, the editor within the CMS, the editor you add text to before it gets entered into the CMS, or wherever you are copying text from if you are copying anything). Which is good, I think, because I expect those are easier for you to set correctly than the server unless you have privs/ are a sysadmin.