I applied to Indiana via their application (not common app) about a week ago and got the thank you for applying email. Is there a way to check that Indiana has all of my materials (SATs etc) like with other colleges?
You should get portal login. It took a little while.
Did you get an ID number in the email? If you did, the instructions for creating an account are here:
https://admissions.indiana.edu/apply/freshman/step-three.html
They say you should get the ID number about two weeks after you apply.