You will need to:
Log in to your account using the email address you signed up with.
Go to "Deposits".
Select the wallet you want to fund.
Choose Bitcoin or Debit/Credit Card (please note that when using Debit/Credit Card for USD/GBP/EUR and BTC)
Select Proceed to the Payments Page and follow the instructions on screen.
You will then need to do an Internal Transfer from your wallet to your MetaTrader account.
Click here to see how to do an Internal Transfer.
Want to know more about funding? Click here