[CentOS] installing yum on RHEL 7.2

im very new to RH, and even more so to YUM, but i need to install it
on a RHEL 7.2 server, which i have done but installing the RPM
package, and updated it via the Centos2 archives.  The program i am
trying to install is bacula, a backup/tape program on one of our old
servers, we need to upgrade to a newer version.  I didnt want to deal
with the deps, so i thought yum was the way to go.  well, it cant find
bacula, and i even downloaded the rpm from their website, and tried to
get yum to install it that way "yum install bacula.rpm" and that
doesnt work either, i get a:

# yum install bacula-mysql-1.38.5-4.101mdk.i586.rpm
Gathering package information from servers
Getting headers from: CentOS-2 base
Getting headers from: CentOS-2 updates
Finding updated packages
Downloading needed headers
Cannot find a package matching bacula-mysql-1.38.5-4.101mdk.i586.rpm

can anyone shed some light on this for me? im kinda lost here.  ive
googled and found some good centos docs, but it doesnt solve my
problem, the "localinstall" switch i guess is not supported anymore
according to something i read on the net, and it doesnt work either
when i try it.

how can i get this installed with something that will handle the deps
for me?  am i even asking the right question? thanks for any help you
can give.

Nick