for install your applications you must first install the following pisi-packages: kernel-source, kernel-headers, gcc and make
The above and some more needed packages can be installed through the following command in a Konsole
sudo pisi it -c system.devel
And have a look in the README file of the .tar.gz for instructions.
Most of the time this is through
sudo make install
and if you get
Cannot find <name>!
try to install the missing package with
sudo pisi it <name>
Install wxcam. For Cheese you need Gnome.