in the eCart add to cart code for the product name binding, you can try using the php htmlentites() function to convert the special characters to HTML entities.
for example the code for the name binding may look like:
$ATC_itemName = "".$row_WADAProducts['ProductName'] ."";// column binding
change this to:
$ATC_itemName = "".htmlentities($row_WADAProducts['ProductName'],ENT_QUOTES,"UTF-8") ."";// column binding
you may need to experiment with the character set being used. see the following page for details: