This IS RHEL 6.3 ? right ?
and not CentOS6.3
please do your self a very BIG favor and save your self a TON of problems
use YUM to install tiger !!!
it is in the RHN repo ( rhel-x86_64-server-6)
RHEL is not a free operating system .
You must buy the required
there are no "if's and's or but's " about it
the desktop license is $49 to $299 per year
install one of the FREE rebuilds like CentOS 6.3
or ScientificLinux 6.3