Please use the package manager of your distribution to install the .deb or .rpm package file. This will automatically setup the necessary permissions and menu entries.
After the installation is complete you should be able to start the MCS and its tools via the “Aaronia” menu group. On some distributions it could be necessary that you logout and login again before the menu entry is visible. Some other distributions (e.g. certain Ubuntu versions using the Unity interface) may not use the standard menu system, please check the distribution documentation on how to access third party applications in those cases.