NCGirl, as Bob stated, you should get the IL pretty soon. If they do it without the second fingeprints (FP) that is very cool. And not have to bother with the FBI check. That part is the worst.
Please note they will in fact run the FBI check again. Just on your fingerprints from January 2008. This is what I was told. I had fingerprints on file from October 2006 when I applied in October 2007. The IO on the phone told me that the fingerprints had been run and cleared in December (around my NOA date). I got second fingerprints done before the IL, however, because the 15-months expired before the IL was generated.
If you don't get an IL or a second fingerprint notice by about March 2009 (i.e., month 14-ish), definitely put in a service request. You can have the second level IO do this over the phone. (You don't have to go in for Infopass.)