You'll need MetaTrader 4 Terminal installed. You can download it from MetaQuotes.net or any MT-compatible broker such as InterbankFX.com, FXDD.com, NorthFinance.com, etc.
You'll need to use the software for a while. You should learn to open chart and plot custom indicator on to it. User Guide is available from Help menu and MetaQuotes.net website. If you need any help, you can ask any time in your own thread in metatrader & zero forum.
Ok, to add more custom indicators to your MT4, download and save them to ..\Program Files\MetaTrader 4\experts\indicators\. Restart your MT4. You'll see it in custom indicators list.