cant open downloadz

Hi, Forgive my ignorance but I recently downloaded Flash MX and cant open it im working in 9.2.2 and downloaded the file as a zip. To tell ya truth I have no idea what the difference is between sit. / zip. / exe. which should i download?

Stuffit turned the zip into a folder but I cant open any of these files
setup.r00
setup.r01
setup.r02
setup.r03
setup.r04
setup.r05
setup.r06
setup.r07
setup.r08
setup.r09
setup.r10
setup.r11
setup.r12
setup.r13
setup.r14
setup.r15
setup.rar
ti.nfo
file_id.diz

what can i /should i do ?

thank you