Parameterized Build

[ilikeflex]

I want to create parameterized build. So i need to install the 
parameterized plugin.
 
My linux server does not have access to internet.
 
So i see in the logs is i see that my jenkins tried to download the plugin 
but failed.
 
So i downloaded the plugin manually. But i donot know how to integerate the 
plugin with jenkins.
 
I am running jenkins through the command
java -jar jenkins-1.483.war
 
Any pointer....
 
Regards
ilikeflex