Problem On Installation

Hello, My name's Misael. I'm trying to install on centos 6.5 the last version of CNS Server 1.3.1 and I really have my /etc/hosts as have to be, installed dos2unix, and when execute the script .run become an error, like this: 

 ########################################Error copying file from /opt/cnsserver/httpd.conf to /opt/cnsserver/stack/apache2/conf/httpd.conf
:Destination not writable
Abort, Retry, Ignore ? [A/r/i]

If i ignore this, continues with others issues..

Warning: Problem running post-install step. Installation may not complete
correctly
 Error writing file /opt/cnsserver/stack/postgresql/data/pg_hba.conf
Press [Enter] to continue :
Warning: Problem running post-install step. Installation may not complete
correctly
 Error running /opt/cnsserver/scripts/cnss_folder_permission.sh  : chmod: no se
puede acceder a «../stack/php»: No existe el fichero o el directorio
Press [Enter] to continue :

I tried to install differents versions, but, its impossible, only 2.0 left me install without errors, but unfortunately not finish the script, its stay freeze on 100% and doesn´t show anything.

can you help me please?

I'm using centos 6.5

Thank You