Firefox flash plugin

[Mariano López Reta <mlreta alternativagratis com>]

Hello, list.

I tried to install Macromedia's flash plugin, both manually and
automatically (plugin finder). Both finish with "plugin installed". I
checked that it really copied the files to the plugins directory (on
Firefox support page, they say that the xpt file goes in the components
directory, so I copied it there too). I also copied the files
from /usr/lib/firefox-1.5.0.1 to /usr/lib/mozilla
and /usr/lib/mozilla-1.7.12

I restarted the browser a zillion times (I even logged off and on
again), but when I open a web page with flash, it keeps telling me that
I need the plugin. 

Can someone tell me what is going on here? I'm lost in the fog at this
point...

Thanks in advance,


-- 
Mariano López Reta <mlreta alternativagratis com>
Tortuguitas, Buenos Aires, Argentina