For those who are having problems with the windows method using SimpleDNS, here's a few observations/tips
a) I have an SOA entry on my list, it still works fine.
b) In your PS3 IP setup...
IP: The local IP you want your playstation to have within your network
Subnet Mask: 255.255.255.0 (in most cases)
Default Router: Your router's IP on your network
Primary DNS: The local network IP of your computer that is running SimpleDNS (go to run, type 'cmd', then type 'ipconfig' to find out if you're not sure what it is)
Secondary DNS: Optional
c) Make SURE you add the correct server for whatever country you're in. the 2 letters after the 'f' in the address correspond to your country. If in doubt, just add all of them from the etter.dns file
*us01.ps3.update.playstation.net = US
*jp01.ps3.update.playstation.net = Japan
*eu01.ps3.update.playstation.net = Europe
*uk01.ps3.update.playstation.net = UK
etc.
Good luck!