hardy medibuntu key verification error

[scholzilla]

I'm getting this when I run my update manager:

GPG error: http://ftp.debian-ports.org sid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 0792182443229C06GPG error: http://packages.medibuntu.org hardy
Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 2EBC26B60C5A2783Failed to fetch http://ftp.debian-ports.org/debian/dists/sid/main/binary-i386/Packages.gz 404 Not Found

any notions?

thanks

[Wobblybob]

you could try opening [System], [Admin..], [Software Sources] going to the 3rd party tab and deleting the medibuntu options then [ok] out and re add them in a [Terminal] by copy & pasting the following:
sudo wget http://www.medibuntu.org/sources.list.d/hardy.list -O /etc/apt/sources.list.d/medibuntu.list
and pressing [Enter], then
wget -q http://packages.medibuntu.org/medibuntu-key.gpg -O- | sudo apt-key add - && sudo apt-get update
and again pressing [Enter]