i understand what you mean. i have noticed that a lot of isu's paperwork isn't updated as much as it should be. for example, the syllabus to study for challenge exams is dated 2005, and the classes that i've registered for over the summer have a date of fall '11. when i began to call isu directly, my path went a lot smoother than when i thought i had to deal with tcn.
i urge people to go through the isu-nursing page with a fine tooth comb, and find out exactly who you need to speak with for your needs, as every person handles a different aspect of the program.
that way, you should be guaranteed the most up to date information.
i can say that when i spoke with carol layton about the challenge exams she did notify me that tcn was a publishing company and i did not need them.
i also urge people to make sure they are going to the direct website for indiana state university, not just googling 'isu nursing' or 'indiana state lpn-bsn' and clicking on the first link, which i believe takes you to tcn or a site that will direct you there, not the school's website.
the main website is indiana state university : nursing
*i'm off my soap box* :)