he hasn't had a chance to update his page for all of the IPs that are sending it. but basically, the whole "YOUR NETWORK WILL BE BLOCKED" thing is bullshit. that's not how spamcop works.
you're fine. that guy (the spammer) sent messages out to contact handles all over the place - several per domain - to try to get spamcop in trouble.
btw, spamcop is busy all the time because of this spam.
what's your IP address? did you try putting it in spamcop to see?
http://spamcop.net/bl.shtml