Dumb question: what's the regular Trainer ID? The Secret ID will most likely be stored right next to it.
Also, I hope the save file itself isn't encrypted or anything.
EDIT: It's not encrypted. I found your name "YVETTE":
/* Pokemon Ranch save (warning - may not be complete)\savegames\0001000157424d45\savedata.bin (2/19/2012 11:23:00 PM)
StartOffset: 00002700, EndOffset: 0000270F, Length: 00000010 */
unsigned char rawData[16] = {
0x43, 0x01, 0x40, 0x01, 0x2F, 0x01, 0x3E, 0x01, 0x3E, 0x01, 0x2F, 0x01,
0xFF, 0xFF, 0x00, 0x00
};