CentOS

Have tried many different recommendations online including below. Always receiving a 'No package npm available' message. Any ideas on how to get this installed with CentOS 5? Thanks.

yum install npm
Loaded plugins: downloadonly, fastestmirror
Loading mirror speeds from cached hostfile
* base: denver.gaminghost.co
* epel: mirrors.xmission.com
* extras: mirrors.unifiedlayer.com
* updates: mirrors.xmission.com
base | 1.1 kB 00:00
epel | 3.6 kB 00:00
extras | 2.1 kB 00:00
hgdedi | 2.5 kB 00:00
updates | 1.9 kB 00:00
Excluding Packages in global exclude list
Finished
Setting up Install Process
No package npm available.
Nothing to do

CentOS 5 is just too old to have anything as recent as node packages. In addition, it has less than 3 weeks of life left before it goes EOL. Better use a newer version instead.