I edited the sources file without making a backup and now I'm paying for it

Everytime I run up2date now, it says that my machine is up to date. However, when I ran "yum update" there were some updates.

If anyone has the default settings for the sources file, I would really appreciate it... and yes, I'll make backups from now on

this is mu rhn/sources file. i have fedora core 2

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### this describes the various package repos up2date will look into
### for packages. It currently supports apt-rpm repos, yum repos,
### and "dir" repos


### format is one repo entry per line, # starts comments, the
### first word on each line is the type of repo.

### the default rhn (using "default" as the url means
### use the one in the up2date config file
#up2date default

### When a channel-label is required for the non up2date repo's,
### the label is solely used as an internal identifier and is not
### based on the url or any other info from the repo.

### an apt style repo, this time arjanv's 2.6 kernel repo
### format is:
### type channel-label service:server path repo name

#apt arjan-2.6-kernel-i386 http://people.redhat.com ~arjanv/2.5/ kernel

### Note that for apt repos, there can be multiple repo names specified
### space seperated.

### an yum style repo
### format:
### type channel-label url

yum fedora-core-2 http://download.fedora.redhat.com/pu.../linux/core/2/$ARCH/os/
yum updates-released-fc2 http://download.fedora.redhat.com/pu...ore/updates/2/$ARCH/

yum-mirror fedora-core-2 http://fedora.redhat.com/download/up.../fedora-core-2
yum-mirror updates-released-fc2 http://fedora.redhat.com/download/up...s-released-fc2
#yum updates-testing http://fedora.redhat.com/updates/testing/fedora-core-$releasever
#yum-mirror updates-testing http://fedora.redhat.com/download/up...pdates-testing



### a local directory full of packages
### format
#dir my-favorite-rpms-i386-9 /var/spool/RPMS/


# multiple versions of all repos except "up2date" can be used. Deps
# can be resolved "cross-repo" if need be.

# Macromedia Flash plug-in only
apt macromedia http://ruslug.rutgers.edu macromedia/apt/fedora/2 macromedia
# User contributed archives
yum livna-stable http://rpm.livna.org/fedora/2/i386/yum/stable/
apt fedora-us-stable-fc2 http://download.fedora.us fedora/fedora/2/i386 stable


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