Okay -- it looks like now I can't assign premium seats to anyone who is not elite traveling on his own record. This is the case with both Firefox and IE.

Had all of the above problems as well booking for my family to LGA. Had to use multiple records to see if I could get an upgrade and was unable to choose seats for my family who got the stink-shield seats . Fortunately, I was in the PC Sunday and went and changed all the seats to exit row seats. At this time, I guess I will have to call the elite line to get my family's seat selections because I cannot do it on CO.com.