Topic: Issues Installing plugins esp ajaxscaffoldp

Hi folks,
I am a first timer. Have made an app and am in the deployment phase of it everything seems to be working fine locally.
While transporting it to online I have this 500 error. The probale reason for that is non installation of plugins in my app.
I tried copying them in the vendor/plugins folder but it wont work. smile
and on the ssh shell from the server
ruby script/plugin install .... wont work
gem build also does not work for us. sad
Can someone be kind enough to explain a lil step by step proc to be able to install the plugin and see how my app works online.

Thanks in anticipation.