I guess USCIS has made a mess themselves about fingerprint.
USCIS has announced that the old 800 number for making Fingerprint Notice appointment has been discontinued. USCIS is still working on the detail instructions of the new biometric appointment scheduling system. It will be announced by the USCIS in the next several weeks. Z & A will be announcing the detail instructions as soon as the USCIS has them available
http://www.hooyou.com/news/news101805fn.htm