Locomotive & script/install plugin

I have installed two plugins with the cli under a terminal session
launched by Locomotive on Mac OS X :
Such as :
script/plugin install http://svn.napcsweb.com/public/excel
and another one for Ajaxscaffold plugin

When I try to use one of the code sample function, I always get
something like :

uninitialized constant Excel

in my controller.
I've understood that any plugin resident into myapp/vendor/plugins/ is
register automatically to the application.
Do i need to add somewhere in my code a reference to those plugin ?
In my controller ?
In application.rb ?

Thanks in advance.

I have installed two plugins with the cli under a terminal session
launched by Locomotive on Mac OS X :
Such as :
script/plugin installhttp://svn.napcsweb.com/public/excel
and another one for Ajaxscaffold plugin

When I try to use one of the code sample function, I always get
something like :

uninitialized constant Excel

in my controller.
I've understood that any plugin resident into myapp/vendor/plugins/ is
register automatically to the application.
Do i need to add somewhere in my code a reference to those plugin ?
In my controller ?
In application.rb ?

I wouldn't think so. What happens if you open the rails console (ruby
script/console) and try to work with the Excel module?

-r