OK, I did some digging in PACER, where it looks like the documents have probably been filed but are probably still sealed.
The relevant case is in the Southern District of New York (https://ecf.nysd.uscourts.gov/cgi-bin/ShowIndex.pl - anyone can sign up for a PACER account, they're free but you pay 8 cents per page, and if you charge less than $10 in a quarter it's free).
They're using an existing case, 1:10-cr-00336-LAK, which is all about the arrest and indictment of a gambling payment processor dude a year ago in April 2010.
See http://www.theaustralian.com.au/news/nation/arrests-follow-internet-high-flyers-release/story-e6frg6nf-1226039942478 for more on the dude.
So the timeline is:
1) Gambling dude is arrested in 2010 and charged with some gambling-related crimes. See his indictment at http://tech.mit.edu/~mherdeg/10-cr-00336-lak-1.pdf
2) Some time recently, he is (according to an Australian newspaper) secretly released from prison and prosecutors have not said whether he's still being charged
3) These 11 people are all being charged with 9 new crimes (documents not yet available, but apparently they'll be stored in this place / as part of this case number)
There have been a bunch of sealed documents added to the case recently; maybe they include the complaint and indictment that the press release talks about. You can see the history I got from PACER at http://tech.mit.edu/~mherdeg/10-cr-00336-entries.txt.