Hi all,
If you have questions about the forms for the F1-Visa and the I-20, I'd suggest contacting OIS at NCSU. You can email them at ois@ncsu.edu, or talk to an advisor directly during their walk-in hours Mon - Friday 2:00 - 3:00 pm EST. You can call, or chat via Google Hangouts in their website. I've never used hangouts with them, but I know it exists.
Hope this helps!