[eluser]WanWizard[/eluser]
What do you mean by 'forms'?
Your application's pages will be in utf-8 if you save the view files in utf-8, you've set the content-type of the page to utf-8, and you've made sure the webserver doesn't touch it (some apache configs override the content-type header, by default to iso-8859-1).
Your database configuration determines if data is saved and retrieved in utf-8.
CI doesn't come into play in these area's...