The top section is very important.
Check off A and H. Fill it in to look just as in the above-noted picture. (If you click the picture, it should enlarge it on the screen for you.)
On line H, put this: 1(d) - Royalty Income
Beneath that line, enter treat country: Canada and the treaty article number Article 12
Now fill out the rest of the form, leaving nothing blank. If it's a spot that doesn't apply to you, write N/A.
Review the form to make sure everything has been filled in. Sign at the bottom (Signature of Applicant), enter the date, and your phone number.
On the line beneath your signature, write n/a, delegate's relationship to applicant, n/a.
If you have questions, you can call the IRS at 267-941-1000. This number applies for international calls. Note, they will not help you fill out your form, step-by-step, but they should provide you with your country's treaty article number.
But you're still not done.
Once you have your identification ready to go, the form completed, signed and dated, you need to include this letter from Amazon along with it. This is the back-up "proof" that confirms your reason for needing a tax number. Here is a link to the letter.
Just put the date as the start of the year, and put your legal name (the one with which you are providing identification for) in the to line.
Now, may I also suggest you make a copy of your completed ITIN form and the letter you alter from Amazon. Note the date, on your copy, of when you mailed it. Do this for two reasons: 1) if you're rejected for any reason (can't see how you would be if you do the above), you have this to refer back on, and 2) you know when you mailed it and how much time has gone by.
It takes about 2 months to hear back from the IRS. For the application that finally got approved, I expedited the mail on August 30, 2012 and received my tax number in the mail yesterday, October 12, 2012.
Once you get your US Tax Number, you're still not finished, though. You have complete forms and send them to Amazon. I'm getting on that next! I'll update once I've done so successfully.