MySQL from RHEL 5.0 CD (no replies)

Hi,
We purchased Red Hat Enterprise Linux 5.0 (RHEL). Other than RHEL, there are additional softwares and we are interested in MySQL.
Question is MySQL that is circulated with RHEL CD, is it standard or enterprise version. Is there any difference between MySQL from MySQL website and RhEL cd.
What type of support can we expect from MySQL for the software that has been circulated by RhEL. MySQL Enterprise version has online backup copability, does the RHEL version of MySQL have all these features.

Thank you.