Here are Peter's typings from that thread:
Harry - INFj
Ron - ESFp
Hermione - INTp (hehe)
Draco - ESTp
Snape - ISTj
And here are the versions from my link:
Harry - ISFp
Ron - ESFp
Hermione - ISTj
Draco - ESTp
Snape - INTj
So these two sources agree that Ron is ESFp, Draco is ESTp, Snape is IxTj. On Harry and Hermione I can see big differences (ISFp vs INFj and ISTj vs INTp).