All right :)
Let me give you some advice on that. What you basically need to do is to install a WAMP server
(provided you have Windows OS). This will allow you to run a local server. Then you only need to install Subversion
which will allow you to download MArcomage source code.
1 - install WAMP (for example in C:/wamp)
2 - create 'marcomage' directory in the wamp/www/ directory
3 - press 'start' on bottom left part of windows toolbar, click 'run' and type 'cmd.exe', press 'ok'. Type 'svn checkout https://svn.netvor.sk/arcomage C:\wamp\www\marcomage'. (this will download MArcomage source code)
4 - click on the small wampserver icon with left mouse button inn the right bottom part of the screen. A wampserver menu will appear. Move mouse over 'PHP', then 'PHP extensions'. If 'php_xsl' extension is not enabled (doesn't have a check) enable it by clicking on it with left mouse button.
5 - start wampserver, click on the small wampserver icon in the right bottom part of the screen. Choose 'phpmyadmin' in the menu. Click on 'import'. Choose marcomage DB install script (marcomage/release/scripts/install_tables.sql) and execute it.
6 - create a copy of file 'marcomage/release/config.php.template' and rename it to 'config.php'.
7 - open 'release/config.php' and change username to 'root'
8 - click on the wampserver icon once again and choose 'localhost'. Click on the 'marcomage', then 'release' and you should now have your own marcomage application :)