Update not working

[Praetor]

Just downloaded and installed Mint XFCE and am really impressed with this distribution. I have tried to update Mint with security updates and tried to use Synaptic to install a few programs, however, nothing downloads and installs. I just started Mint update and I have a icon in the lower right corner of a red broken lock. The pop up message states that it could not refresh the list of packages. This is my sources.list:

## -------------------
## UBUNTU REPOSITORIES
## -------------------

## +++ Gutsy (Ubuntu 7.10) +++
deb http://archive.ubuntu.com/ubuntu gutsy main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu gutsy-updates main restricted universe multiverse
deb http://security.ubuntu.com/ubuntu gutsy-security main restricted universe multiverse

## +++ Backports & Proposed (Ubuntu Unstable) +++
#deb http://archive.ubuntu.com/ubuntu gutsy-backports main restricted universe multiverse
#deb http://archive.ubuntu.com/ubuntu gutsy-proposed main restricted universe multiverse

## +++ Source Repositories +++
#deb-src http://archive.ubuntu.com/ubuntu gutsy main restricted universe multiverse
#deb-src http://archive.ubuntu.com/ubuntu gutsy-updates main restricted universe multiverse
#deb-src http://security.ubuntu.com/ubuntu gutsy-security main restricted universe multiverse
#deb-src http://archive.ubuntu.com/ubuntu gutsy-backports main restricted universe multiverse

## -----------------------
## LINUX MINT REPOSITORIES
## -----------------------

## Daryna (Linux Mint 4.0)
deb http://www.linuxmint.com/repository daryna/

## +++ Romeo (Linux Mint Unstable) +++
## deb http://www.linuxmint.com/repository romeo/

## ------------------
## OTHER REPOSITORIES
## ------------------

## +++ Canonical (RealPlayer10, Opera, DesktopSecure etc...) +++
deb http://archive.canonical.com/ubuntu gutsy partner

## +++ Medibuntu (Codecs and extra applications) +++
deb http://packages.medibuntu.org/ gutsy free non-free

##
## Exaile Music Player updates
deb http://download.tuxfamily.org/syzygy42 gutsy exaile
##
## Wicd Updates
deb http://wicd.longren.org gutsy extras
##
## Swiftfox
deb http://getswiftfox.com/builds/debian unstable non-free


Thanks for any assistance.

Praetor

[GrayWizardLinux]

not sure if this is relevant to your situation:

I installed the Mint update stuff and I downsized the updates to level 1 and 2 and it always said there were updates and they were at level 3 or 4/5. Not the 1 & 2 level. It also ran every time I started the laptop and it drove me crazy and there were also errors too so I removed this and am running Celena straight as the original install and no updates. No mint update manager or whatever it is called.

to me - this was a real pain in the ass.