My understanding is that Day 1 is broken on Code Breaker now unless putting the files on a USB flash drive. You can't download them from the site from your PS2 anymore because it changed URLs to CodeTwink, and is no longer associated with Pelican. Code Breaker has been discontinued since Pelican wanted to become an official game publisher.
My PlayStation2 HDD guide.
NTSC J SCPH 30000 with HDD and PSBBN 0.32
NTSC U/C SCPH 30001R Astral Blue LE PS2
Final Fantasy XI status:
Server - Ragnarok, Race - Mithra, Jobs - BLM 72 WHM 51 SCH 39 SMN 25, Nationality - Windurst, Name - Bungiefan