Question about iptables in edgy

[The enigma]

This is probably a silly question, but I'm rather new to Linux. Does
iptables file start by default with Ubuntu edgy? I just configured a
simple firewall called lokkit, and I checked to see if the chain entry
took, and it did. Now I just want to know by starting my machine,
booting into gnome desktop, does the iptables file configure the chains
within the boot routine by default, or do I have to set up a command,
like in the menu.lst file in grub, to use the iptables upon boot up. I
know, I know.. I don't really need a firewall, and lokkit is not the
most secure, I have a stand alone machine connected to a high-speed ISP.
I'm just slightly, the paranoid type (probably from using Windows all
these years).
Thanks
-- 
~ Rick D.
  Evolution Email
  Live free or die.
     +Linux+