Well that's the photo from the judenIh8 Yahoo profile, for sure.
As with the James54 name, it's a possibility that more than one person has that name.
James54 probably exists on every email server in the country, since people add numbers to common names all the time. You'd have to find similar posts from a particular James54 to make it work. The hacker stuff from Australia is clueworthy.
judenIh8, on the other hand, is a little more unusual. I found very few web hits on that name, and it's pretty common for creeps like that to use Yahoo mail accounts. I found very little web content with that name.
I like this one better, I think. The Middle Eastern appearance is also a possible clue. Yahoo groups include a bunch of anti-semitic types.
Now, I'm looking for some other sort of link between this ID and offensive postings.
Maybe someone can photoshop him into a Hasidic Jew, or at least put a Yammica(sp?) on him?