Debian package problem

I was installing nas...but I seem to have messed something up. Because now the package is stuck somewhere between being installed and not being installed, and I can't get it to either install or uninstall so I can start over again.

What should I do to get this thing unstuck?

[root@terrania nvidia]# apt-get install nas
Reading Package Lists... Done
Building Dependency Tree... Done
Sorry, nas is already the newest version.
0 packages upgraded, 0 newly installed, 0 to remove and 3  not upgraded.
1 packages not fully installed or removed.
Need to get 0B of archives. After unpacking 0B will be used.
Setting up nas (1.5-1) ...
update-rc.d: /etc/init.d/nas: file does not exist
dpkg: error processing nas (--configure):
 subprocess post-installation script returned error exit status 1
Errors were encountered while processing:
 nas
E: Sub-process /usr/bin/dpkg returned an error code (1)

[root@terrania nvidia]# apt-get remove nas
Reading Package Lists... Done
Building Dependency Tree... Done
The following packages will be REMOVED:
  nas 
0 packages upgraded, 0 newly installed, 1 to remove and 3  not upgraded.
1 packages not fully installed or removed.
Need to get 0B of archives. After unpacking 258kB will be freed.
Do you want to continue? [Y/n] 
(Reading database ... 81810 files and directories currently installed.)
Removing nas ...
/var/lib/dpkg/info/nas.prerm: /etc/init.d/nas: No such file or directory
dpkg: error processing nas (--remove):
 subprocess pre-removal script returned error exit status 1
/var/lib/dpkg/info/nas.postinst: /etc/init.d/nas: No such file or directory
dpkg: error while cleaning up:
 subprocess post-installation script returned error exit status 1
Errors were encountered while processing:
 nas
E: Sub-process /usr/bin/dpkg returned an error code (1)