Validating XML from quests.xml

If anyone try to use this file in other local (like a website), it returns an error.

Every & in XML must be &amp; because it's a special charactere.

Validator used: http://www.w3schools.com/xml/xml_validator.asp

(Couldn't test it right now. if anyone do it, i'll be glad.)
(I was tring to read this file from PHP and get stuck, so i changed and worked.
In PHP this is running pretty good.)