when I went through and got my scholarship, I got the application and all necessary information through the Unit at where I was going to school at. Every unit has a Lieutenant who is in charge of recruiting new freshman, just find the NROTC units phone number in the University's webpage or directory and give them a call, explain your situation and they will help you out.
If you have any other questions utilize the search function that this website has, because if you have thought about it, then I guarauntee someone else who was in your shoes has thought about it and you can get a quick answer to your question without having to start a new thread and wait for answers.
Good Luck