This will install the latest version of Sopcast, GSopcast GUI and the QSopcast Gui

# Get the GSopcast GUI deb file
wget http://freetowatchtv.co.uk/images/ubuntu/gtk-sopcast_0.2.8-1_i386.deb
# Install the deb
sudo dpkg -i gtk-sopcast_0.2.8-1_i386.deb
# get the newest version of sopcast
wget http://freetowatchtv.co.uk/images/ubuntu/sp-auth.tgz
# extract it
tar xzf sp-auth.tgz
# move the sopcast executable to the directory where the GUI requires it to be and renaming it (the newest version from sopcast is named sp-sc-auth and not sp-sc)
sudo cp sp-auth/sp-sc-auth /usr/bin/sp-sc
# root should own the sp-sc executable - probably not required
sudo chown root:root /usr/bin/sp-sc

#Download the QSopcast GUI and Extract
wget http://freetowatchtv.co.uk/images/ubuntu/qsopcast.tar.gz
tar xzf qsopcast.tar.gz
#Copy to /usr/bin and change ownership
sudo cp qsopcast /usr/bin/
sudo chown root:root /usr/bin/qsopcast
#Create shortcut to qsopcast
sudo gedit /usr/share/applications/qsopcast.desktop

Enter the following into the blank text document, then save and close

[Desktop Entry]
Name=QSopcast
Comment=Sopcast TV Player
Exec=/usr/bin/qsopcast
Icon=/usr/share/pixmaps/gsopcast.xpm
Terminal=false
Type=Application
Categories=Application;AudioVideo;

You should now have QSopcast and Sopcast TV Player icons under Sound & Video in your menu.

I find that QScopast is much better if you want to manually add in sopcast channels.