transferring files from PC to Powerbook? HELP!

Hi everyone. I didn't know whether to post this in "Macintosh" or "Networking," so I posted in both.

I have a Powerbook G4 and an IBM PC Pentium 4. I want to transfer a file from my PC, but it is over 4 GB and I don't have an external hard drive that my Mac can read. I have been told that I can set up my Network Preferences on both machines and transfer the file by connecting a firewire or ethernet cable between both computers.

I followed the instructions at this website:

http://www.macosxhints.com/article.php?story=20031112091634533

... but I have not been able to make it work. I start up, WS-FTP Pro on my PC, type in "10.0.0.1/", followed by the username for my Mac, but it always says "Connect Failure."

Any idea what I'm doing wrong here?