can I use this class or its too old ?

Hello , I have found a class that is very easy to use but I' m afraid its too old ( 2006 ) and might be not compatible with newer versions ... i'm very new to cpanel developing ,,and don't know any thing yet ... i just want to create ftp accounts , get used space and simple things .... can I use this class ? here is the url :
cPanel API (cpanel) - PHP Classes