Go to the following site and download the rpm
http://www.libreoffice.org/download/
You have to extract the downloaded package
Assuming that the extracted folder will be LibO_3.3.0rc1_Linux_x86_install-rpm_en-US (might be any folder name)
Steps
1. Open terminal and login as root
# su -
2. Go to folder LibO_3.3.0rc1_Linux_x86_install-rpm_en-US
# cd LibO_3.3.0rc1_Linux_x86_install-rpm_en-US
3. There will be some folders including RPMS
Go to RPMS
# cd RPMS
4. Run the command
su -c 'yum install *.rpm'
Some part of installation is complete
5. Go into folder desktop-integration
# cd desktop-integration
6. su -c 'yum install libreoffice3.3-redhat-menus-3.3-301.noarch.rpm'
Installation is complete
