I think "walk through" means that you can get aliscense in a short period of time.To find out quickly about the liscensure requirements for each state but without going to the actually boards website, do this:
Go to yahoo and do a search for the travel company, "Travel nurse across america". Then when you get to the site, go to do a job search
. Now when you search, It doesn't really matter the specialty, but make sure to click "RN". Well search jobs by state and then pick any job. Well when that job profile comes up, you will section a link that says "Liscensure info" and it will tell you the liscensure requirements for that state.
This may seem like a lot, but for me its easier than going to the board of nursing's website for a given state and sifting through all that and opening pdf files just to find liscensure requirements. Hopefully, this helps. If not sorry in advance for wasting your time.