Firstly, start by going directly to https://nashmarkets.com/
Hover your mouse over Platforms then MetaTrader4 or click here
Open the file download to start installing MT4
Select NashMarkets-Live and then cli
Select Existing Trade Account.
Enter the MetaTrader account details from the email that you received when you created an MT4 account.
Click the Finish button.
Wait a few moments for everything to load. Once loaded you will see your account on the left!