http://www.cs.ucsb.edu/~vigna/CTF/iCTF2008_1_WebSite.tgz
http://www.cs.ucsb.edu/~vigna/CTF/iCTF2008_2_Financial.tgz
http://www.cs.ucsb.edu/~vigna/CTF/iCTF2008_3_Development.tgz
http://www.cs.ucsb.edu/~vigna/CTF/iCTF2008_4_Bomb.tgz