Financial aid award letter help?

I received my award letter from school, giving me a 1500 stafford subsidized loan and 2750 unsubsidized loan. I accepted both and sent it back(not even a week ago). I then applied for the loans and signed the MPN. This was on Thursday(8/14). On Friday 8/15 I checked the status of the application online, and it showed I had a sub. loan application as incomplete. It said it was working with my school to find out eligibility and a few other things. I take it this means getting the loan certified. However, it is now showing anything about an unsub. loan. Do they process one at a time? I did not receive any grants,but at the time I applied for these loans on 8/14, I was only enrolled with 6 hours. I now have 12. Would this matter? I will call my school, but since they are closed today just trying to get some input.