unable to install mozilla-mplayer plugin

["Digvijoy Chatterjee" <chatterjee.digvijoy@gmail.com>]

Hi ,
I run Debian-testing i386 ,
I was trying to install the Mozilla mplayer plugin using Synaptics ,
and this is what I got back !!..

mozilla-mplayer:
Depends: mplayer (>=1.0-pre5) but it is not installable or
	mplayer-custom (>=1.0-pre5) but it is not installable or
	mplayer-386 (>=1.0-pre5) but it is not installable or
	mplayer-586 (>=1.0-pre5) but it is not installable or
	mplayer-686 (>=1.0-pre5) but it is not installable or
	mplayer-k6 (>=1.0-pre5) but it is not installable or
	mplayer-k7 (>=1.0-pre5) but it is not installable or
	mplayer-powerpc (>=1.0-pre5) but it is not installable or
	mplayer-g4 (>=1.0-pre5) but it is not installable or
	mplayer-amd64 (>=1.0-pre5) but it is not installable or
	mplayer-nogui (>=1.0-pre5) but it is not installable
Any Idea , do I need to install mplayer first or there is a way around this ?

It would be great if someone could also tell me how to install mplayer
, as totem is not able to play most file formats...

Thanks
Digz