http://www.nxtcrypto.org/
I can't be sure yet and I still don't understand some of my timestamps, but I see in my browser logs that I accessed that page at around the time I updated to 0.4.8 and I'm pretty sure I remember using the link on that page.
EDIT: I think I even remember laughing about how silly it was that that page pointed to an IP address for the download.
mine was DL'd from nextcoin.org, via the Mega link that was there at the time I DL'd it.
The only reason I mention it is I DL'd that client.zip from nxtcrypto.org as well, and never touched it.
I take it back. With a little help from the timestamp on my post here:
https://bitcointalksearch.org/topic/m.4240566
I figure I downloaded it from a link on this page:
https://bitcointalk.org/index.php?topic=345619.11920
What an idiot I am for doing that. To reiterate, I DO NOT think I downloaded the bad client zip from nxtcrypto.org.