This forum should help you to find (or give) assistance for installing or using the RPM available in the remi repository for  Fedora and Enterprise Linux (RHEL, CentOS, ...)

It's not a replacement for wonderful existing documentation :

• http://www.redhat.com/docs/manuals/ Red Hat Manuals

• http://docs.fedoraproject.org/ Fedora Documentation

• http://www.centos.org/docs/ CentOS Documentation

It's, also, not a replacement for official support (Redhat Network) or the distribution community forums  :

• http://forums.fedoraforum.org/ Fedora Linux Support Community

• http://centos.org/modules/newbb/ CentOS Forums

Don't forget to read the repository FAQ.