Errors in Ubuntu 5.10

[Sumesh K.S]

Hi,
     When i start synaptic package manger i get these errors

W: Couldn't stat source package list
http://in.archive.ubuntu.combreezy/main Packages
(/var/lib/apt/lists/in.archive.ubuntu.com_ubuntu_dists_breezy_main_binary-i386_Packages)
- stat (2 No such file or directory)
W: Couldn't stat source package list
http://in.archive.ubuntu.combreezy/restricted Packages
(/var/lib/apt/lists/in.archive.ubuntu.com_ubuntu_dists_breezy_restricted_binary-i386_Packages)
- stat (2 No such file or directory)
W: Couldn't stat source package list
http://in.archive.ubuntu.combreezy/universe Packages
(/var/lib/apt/lists/in.archive.ubuntu.com_ubuntu_dists_breezy_universe_binary-i386_Packages)
- stat (2 No such file or directory)
W: Couldn't stat source package list
http://in.archive.ubuntu.combreezy/universe Packages
(/var/lib/apt/lists/in.archive.ubuntu.com_ubuntu_dists_breezy_universe_binary-i386_Packages)
- stat (2 No such file or directory)
W: Couldn't stat source package list
http://in.archive.ubuntu.combreezy/multiverse Packages
(/var/lib/apt/lists/in.archive.ubuntu.com_ubuntu_dists_breezy_multiverse_binary-i386_Packages)
- stat (2 No such file or directory)
W: Couldn't stat source package list
http://in.archive.ubuntu.combreezy/universe Packages
(/var/lib/apt/lists/in.archive.ubuntu.com_ubuntu_dists_breezy_universe_binary-i386_Packages)
- stat (2 No such file or directory)
W: Couldn't stat source package list
http://in.archive.ubuntu.combreezy-updates/main Packages
(/var/lib/apt/lists/in.archive.ubuntu.com_ubuntu_dists_breezy-updates_main_binary-i386_Packages)
- stat (2 No such file or directory)
W: Couldn't stat source package list
http://in.archive.ubuntu.combreezy-updates/restricted Packages
(/var/lib/apt/lists/in.archive.ubuntu.com_ubuntu_dists_breezy-updates_restricted_binary-i386_Packages)
- stat (2 No such file or directory)
W: Couldn't stat source package list
http://security.ubuntu.combreezy-security/main Packages
(/var/lib/apt/lists/security.ubuntu.com_ubuntu_dists_breezy-security_main_binary-i386_Packages)
- stat (2 No such file or directory)
W: Couldn't stat source package list
http://security.ubuntu.combreezy-security/restricted Packages
(/var/lib/apt/lists/security.ubuntu.com_ubuntu_dists_breezy-security_restricted_binary-i386_Packages)
- stat (2 No such file or directory)



I using internet using a proxy. I can open mails and webpages using Firefox.
Please help me. I can't update system by these errors


Please help me.
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