apt-get problem

I put the following line into my sources.list file:
rpm http://ayo.freshrpms.net fedora/linux/development/i386 core

Can anyone tell me how to fix the error I am now getting?
Everytime I now run 'apt-get update' I get the following:
apt-get update
Get:1 http://ayo.freshrpms.net fedora/linux/development/i386 release
[626B]
Fetched 626B in 1s (423B/s)
Get:1 http://ayo.freshrpms.net fedora/linux/development/i386/core
pkglist [1728kB]
Get:2 http://ayo.freshrpms.net fedora/linux/development/i386/core
release [171B]
Fetched 1728kB in 1m16s (22.6kB/s)                                     
       
Reading Package Lists... Done
Building Dependency Tree... Done
W: Release file did not contain checksum information for
http://ayo.freshrpms.net/fedora/linux/development/i386/base/pkglist.core
W: Release file did not contain checksum information for
http://ayo.freshrpms.net/fedora/linux/development/i386/base/release.core
W: You may want to run apt-get update to correct these problems


-Tom
http://www.tarogue.net/~tom/

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