Install Acronis 11.5 on Centos 6.x

# cat /proc/version
Linux version 2.6.32-358.6.1.el6.x86_64 (mockbuild@c6b9.bsys.dev.centos.org) (gcc version 4.4.7 20120313 (Red Hat 4.4.7-3) (GCC) ) #1 SMP Tue Apr 23 19:29:00 UTC 2013
I am planning to purchase Acronis for Linux and would like to start with the trial.
Can somebody please post detailed instructions on how to install Acronis for Linux on Centos 6.4 with kernel/gcc versions above. The manual is a little confusing on details

Thank you

Additional CLI logs:
# make -v
GNU Make 3.81
...
This program built for x86_64-redhat-linux-gnu
# gcc -v
-bash: gcc: command not found