The SSU didn't finished installing, and yes, you are lucky.

The update contains a documentation package. This package causes a lot of trouble, because it fails if the user has moved, removed or linked the documentation files:
It fails if there is no files in "/usr/share/pre-installed/MyDocs/.documents/". Create that directory and touch or put a file there if you have that deleted.
It fails if the "/home/user/MyDocs/.documents/osso_software_copyright.pdf" file is a symlink
It fails if the "/home/user/MyDocs/.documents/~sfil_li_folder_user_guides/" directory is a symlink or is empty. Make sure you have an actual directory with any file there.

In a xterm, as root, do
apt-get -f install
If you get errors related to /etc/rc2.d symlinks, download the invoke-rc.d from this post
http://www.internettablettalk.com/forums/showpost.php?p=229093&postcount=304

replace your /usr/sbin/invoke-rc.d with it, "chmod +x /usr/sbin/invoke-rc.d", and try again.
If you are lucky everything will work. If not, as long as you do not reboot, it will still be possible to fix it by hand.