Call the NY board of nursing and they most likely will send you the video or cd to watch and take the test or they may have it on line. They don't expect you to go find a class. The rest is just filling out the forms and have your nursing school send your record to NY. Every state is different Also, you should get reimbursed by the company if you are going to take an assignment and just need the license. Ask the company the policy.
Some states are walk thru which makes life easy.