Possible gnome/libnautilus2-2 packaging bug?

[Vincenzo Di Massa]

Hello everybody, I'm new to both debian and ubuntu...
But I already like it so much!
I'm a KDE use, but would like installing GNOME...
When I install gnome-desktop environment I get an error that makes me think of 
a bug; the error is: nautilus-media wants to install libnautilus2-2 but it 
can't because...
"""
Package libnautilus2-2 has no available version, but exists in the database.
This typically means that the package was mentioned in a dependency and never 
uploaded, has been obsoleted or is not available with the contents of 
sources.list
"""

Next is my sources.list

---sources.list BEGIN---
#HOARY

deb http://archive.ubuntu.com/ubuntu/ hoary main restricted universe 
multiverse
deb http://archive.ubuntu.com/ubuntu/ hoary-security main restricted
deb http://archive.ubuntu.com/ubuntu/ warty-updates main restricted universe
deb-src http://archive.ubuntu.com/ubuntu/ hoary main restricted universe 
multiverse
---sources.list END---

Vincenzo