decide which state you want to apply, work and live.
then go to www.ncsbn.org
click boards of nursing. you can find the website of every state there.
go to the website of the state where you intend to apply. read the instructions there and download the application forms. just follow the instructions then mail it. wait for your eligibility letter. if you are already eligible to sit for the exam, you can now register to pearsonvue (www.pearsonvue.com/nclex)
. after that, you're going to recieve your ATT (authorization to test) on your email address (if you provide one during the registration) or it will be mailed on your home address. you can print the ATT that they sent in your email address. what matters is that the name in the att should match the name on your ID.
if you already have your ATT, you can now see the calendar schedule on your pearsonvue account. available testing dates and time are indicated there. you can now schedule an appointment for exam. make sure it is within the validity of your ATT (each state has different validity period for ATT).
for more info read the nclex candidate bulletin
if you still have any questions,feel free to ask.