Go to http://www.mozilla.org/projects/seamonkey/releases/
Download the appropriate Seamonkey client. It's just a streamlined good ol' Netscape Navigator plus other plugins/software.
Install the package. Then launch Seamonkey. This opens up a web browser.
Type irc://irc.undernet.org/soc.culture.filipino or
irc://newyork.ny.us.undernet.org/soc.culture.filipino in the address.
You're there.
