NON-BOOT TO SELFBOOT, NEED HELP PLEASE

Yesterday i was trying to make crazy taxi selfboot. When i reached the step that says to copy the ip.bin and 1st_read.bin to the selfboot dir and next hack them i was given a message of error on the 1st_read.bin file the binhack can´t hack my 1st_read.bin file and i don´t no why. I made all right i removed those files from the crazy taxi cd and putted on the selfboot dir according that i already had copy the other files to the data dir except the bin files. I wanna to know which/how file should i hack from the cd (which bin). A strange thing that i notice was that the 1st_read.bin is a file with 1,39 Mb.
I wanna to know also what size of dummy file should i create and if the real rename file is 000dummy.dat cause i don´t find this file in any selfboot game. Thak you very much.