@jholder
thanks for the md5 - i never got that one
@bdial
no, we can't use torrent in the company, i have to download that one at home

- but for now i will give it another try...
*edit*
didn't work...
md5sum zcs-5.0.6_GA_2313.RHEL5_64.20080522130456.tgz
f14aadedbc1fc8051381b80522ebbcf4 zcs-5.0.6_GA_2313.RHEL5_64.20080522130456.tgz
will try the torrent file at home... thanks so far!
*edit*
the torrent file worked! Upgrade done successfully fromm 5.0.2 -> 5.0.6
thanks!