Once you have your SCPH10000.bin (extracted from the zip), you typically place it in the /bios folder of your emulator. From there, you can experience the iconic "towers" startup screen and jump back into the massive library of PS2 classics.
“No,” Rei replied. “If this unlock is real, we can jailbreak every PS2 ever made. Permanently. Not with a mod chip. With a password .” Sony Playstation 2 Bios File Name Scph10000.zip