How to install OpenLaszlo 4.4.0.tar.gz on Ubuntu Linux ?

This should help out:
http://ubuntuforums.org/showthread.php?t=860157

The Ubuntu forums thread posted above looks promising
http://ubuntuforums.org/showthread.php?t=860157

Also take a look here
http://www.openlaszlo.org/documentation

The use of the Terminal in most cases is not needed as Ubuntu has the Synaptic Package Manager which allows you to easily install and remove software

Here is the Official Ubuntu Synaptic Package Manager Documentation
https://help.ubuntu.com/community/SynapticHowto

If you do need to use the Terminal

Here is the Official Ubuntu Terminal Documentation
https://help.ubuntu.com/community/UsingTheTerminal

To install individually downloaded deb. files then Ubuntu has the GDebi Package Installer (already built in to Ubuntu) which automatically starts up when you try to open a deb.file
http://allmyapps.com/app/gdebi-gdebi-package-installer


Installing Software in Ubuntu (which includes tar.gz and tar.bz2 files)
http://www.psychocats.net/ubuntu/installingsoftware

tar.gz and tar.bz2 files are the last resort as it means compiling from source (not recommended for new users)


LUg.