[SOLVED] Warnings when installing or upgrading

[JoeS]

I'm getting some warning messages when I try to install or update:

This is my sources.list:

################################################## ###########
################### OFFICIAL DEBIAN REPOS ###################
################################################## ###########

###### Debian Main Repos
deb Index of /debian lenny main contrib non-free
#deb-src Index of /debian lenny main contrib non-free

###### Debian Update Repos
deb Debian -- Security Information lenny/updates main contrib non-free
#deb-src Debian -- Security Information lenny/updates main contrib non-free

################################################## ############
##################### UNOFFICIAL REPOS ######################
################################################## ############

###### 3rd Party Binary Repos

#### Debian Multimedia - Debian Multimedia Packages::Home
## Run this command: apt-get update && apt-get install debian-multimedia-keyring && apt-get update
deb Debian Multimedia Packages::Home lenny main

#### Wine - WineHQ - Run Windows applications on Linux, BSD, Solaris and Mac OS X
## Run this command: wget -q http://wine.budgetdedicated.com/apt/387EE263.gpg -O- | apt-key add -
#deb http://www.lamaresh.net/apt lenny main


####### 3rd Party Source Repos

#### Wine (Source) - WineHQ - Run Windows applications on Linux, BSD, Solaris and Mac OS X
## Run this command: wget -q http://wine.budgetdedicated.com/apt/387EE263.gpg -O- | apt-key add -
#deb-src http://www.lamaresh.net/apt lenny main

I ran the this command: Run this command: apt-get update && apt-get install debian-multimedia-keyring && apt-get update because I want to use the multimedia repo.
I got this warning:

WARNING: The following packages cannot be authenticated!
debian-multimedia-keyring

I also tried to do a safe upgrade and got this warning:

WARNING: untrusted versions of the following packages will be installed!

Untrusted packages could compromise your system's security.
You should only proceed with the installation if you are certain that
this is what you want to do.

libavutil49 libxvidcore4 libpostproc51 libamrnb3 libx264-65 libmp3lame0 libamrwb3 libdirac0 libavcodec51 libfaac0

Do you want to ignore this warning and proceed anyway?
To continue, enter "Yes"; to abort, enter "No":

What am I doing wrong?

[jmadero]

just means that you don't have the key installed. If you put in a source without importing the appropriate key then you'll get warnings about it possibly being unsafe. It's not a big deal if you know the packages are safe, just type yes and install your stuff...as for the keyring not being imported, I'm not positive about that, if it brings up the options of "yes, no or abort" type in yes and see if you import the key correctly