If you like to install Freelance Cockpit 2 on your local machine using WAMP Server you need to make sure to enable the apache rewritemodule. Click on the WAMP icon in your task-bar and click on Apache -> Apache modules -> rewritemodule
You also need to make sure that the Curl extension is loaded. Just open your php.ini (...wamp\bin\apache\apache2.2.22\bin\php.ini) and remove the semicolon in front of the following extension:
If rewrite_module is not active you will get an "Internal Server Error" message if you try to access the Freelance Cockpit installation tool.