Can anyone help about this problem?

Code:
[root@mail ~]# tar xzvf zcs-patch-6.0.6_GA_2332.tgz
zcs-patch-6.0.6_GA_2332/
zcs-patch-6.0.6_GA_2332/source/
zcs-patch-6.0.6_GA_2332/source/build
zcs-patch-6.0.6_GA_2332/source/6.0.6_P1/
zcs-patch-6.0.6_GA_2332/source/6.0.6_P1/zimbra-store/
zcs-patch-6.0.6_GA_2332/source/6.0.6_P1/zimbra-store/opt/
zcs-patch-6.0.6_GA_2332/source/6.0.6_P1/zimbra-store/opt/zimbra/
zcs-patch-6.0.6_GA_2332/source/6.0.6_P1/zimbra-store/opt/zimbra/lib/
zcs-patch-6.0.6_GA_2332/source/6.0.6_P1/zimbra-store/opt/zimbra/lib/jars/
zcs-patch-6.0.6_GA_2332/source/6.0.6_P1/zimbra-store/opt/zimbra/lib/jars/zimbrastore.jar

gzip: stdin: invalid compressed data--format violated
tar: Unexpected EOF in archive
tar: Unexpected EOF in archive
tar: Error is not recoverable: exiting now
[root@mail ~]# cd zcs-patch-6.0.6_GA_2332
[root@mail zcs-patch-6.0.6_GA_2332]# ./installPatch.sh
-bash: ./installPatch.sh: No such file or directory
[root@mail zcs-patch-6.0.6_GA_2332]#
Thanks