Originally Posted by gleneagles49
I have been looking at Avant window which looks like a useful thing to have in the taskbar but am unsure exactly where I download it from.
It doesn't go in the panel (the proper term is "panel", not "taskbar"), it replaces the panel.
And you get it using the package manager. There is a GUI for it, or you can use the command line:
apt-get install avant-window-navigator
It's almost never a good idea to install software without the package manager, since it will not be tracked by it. This means that it will be difficult to uninstall and dependencies could get messed up.