Different codes for Developer Assignment?

[Steven Segers]

Hello All

This may be a silly question but when I go the the Pearson VUE site to register for my assignment I find 6 entries for the assignment (+ 2 for resubmission):
1Z0-842 Java Standard Edition 6 Developer Certified Master Assignment (T1R)
1Z0-842-JPN Java Standard Edition 6 Developer Certified Master Assignment (T1R)
1Z0-844 Java Standard Edition 6 Developer Certified Master Assignment (T1)
1Z0-844-JPN Java Standard Edition 6 Developer Certified Master Assignment (T1)
1Z0-855 Java Standard Edition 6 Developer Certified Master Assignment (Step 1 of 2)
1Z0-855-JPN Java Standard Edition 6 Developer Certified Master Assignment (Step 1 of 2)
1Z0-857 Java Standard Edition 6 Developer Certified Master Assignment for Resubmission
1Z0-857-JPN Java Standard Edition 6 Developer Certified Master Assignment for Resubmission

I cannot find any info on what the difference is between these options. The oracle website refers to 1Z0-855, so I'm guessing I should pick that one, but I'd feel better if I knew what the different options are for, or if someone could confirm 1Z0-855 is the correct one.
I wouldn't want to do the assignment and then find out I have to go to Japan for my essay because I ordered the wrong code :p

Best regards

Steven

[Roel De Nijs]

Valuable info at the Oracle blog

[Sean Keane]

Wow, this bit here is interesting "Note that you will not be eligible to register for the essay until you have submitted your assignment.". I was hoping to register for the essay exam before submitting my assignment.

There's also a comment on the article that the deadline for avoiding the mandatory course requirement is being extended to Sept 30, 2011 (as mentioned on this thread also). Hopefully this will be announced officially