It is not EA. It is manual trading systems. There are few BrainTrading systems on this section.
If you are talking about M30 timeframe so do the following.
1. Download BrainTrading for M30 timeframe.
1.1. go to this post http://www.forex-tsd.com/58620-post11.html
1.2. you can see this attachment namely bt_m30_allinone_versions.zip. Download it.
1.3. use Winzip or Winrar software to open (unzip) attachments. I am using Winrar
WinRAR archiver, a powerful tool to process RAR and ZIP files because it is free software.
1.4. you can see 2 folders: variation_1 and variation_2.
1.5. you see many my images in the end of this thread BrainSystem: Trading System Development and Trades
It is from variation_1 folder.
How to install.
2.1. place all indicators from 2 folders to /indicator folder Metatrader's directory. I mean: all files with mq4 extention to this folder inside your computer: C:\Program Files\MetaTrader4\experts\indicators (for example);
2.2. place 2 template files to this folder inside your computer: C:\Program Files\MetaTrader 4\templates (for example).
2.3. open MetaEditor and compile all indicators.
2.4. open M30 chart, right-mouse click on the chart, find Template from menu and find template file. In my case it is Bt7_m30.
Read this post for more information about which file is going to which folder and why
http://www.forex-tsd.com/92940-post7.html