I'd love to find out for sure, to be honest with you. We know he was aware in some form of 1998 in 2001, contrary to his 2011 testimony. As far as the 1998 emails go, we know at the very least that Curley was aware that DPW and the university police were involved in the investigation and a child psychologist had interviewed the two boys. Curley repeatedly asked Schultz for status updates into the investigation starting on 5/13/98 and for several weeks after (including mentioning that "Coach" was anxious to know where the investigation stood), and Schultz ended up telling Curley that a meeting was held with Jerry, that authorities concluded no criminal behavior occurred and the investigation was closed. Spanier was copied on all of those emails, but there's obviously no way to tell whether or not he actually read them. Spanier didn't respond to any emails in 1998.
Spanier is also involved in a 5/16/98 email with a subject line of "Joe Paterno" from Curley to Schultz, with Spanier copied. Curley wrote "I have touched base with the coach. Keep us posted. Thanks." Schultz responded (again with Spanier copied) "Will do. Since we talked tonight I learned that the Public Welfare people will interview the individual Thursday."