please help me!

i've downloaded WinZip, WinRaR, and Discjuggler v3. installed all of them. also downloaded San Francisco Rush 2049. i'm supposed to have 28 files(e-sf2049.001-e-sf2049.028)... but for some reason, i only have 4:

1st_read.bin
2-2049fx.nfo
ip/bin
sf2049.ppf

please tell me what i'm doing wrong. under WinRar, i only see the above files after i've extracted it. where can i browse to see that 28 files??