I ran a quick test by adding a product and setting the Product name to be 'é' and after going through a transaction, the name displayed correctly in my Products_Chart.php page. When i look into the database the value is show as 'Ã©', but the character is displayed correctly on the page. I don't think the database type is the issue here, because by default my database had latin1 charset and changing it to utf did not change any thing.
Does the character display correctly on the order pages and the front end page? I just curious to see if the issue is only in the charts.