Visit the Getting Started tab and follow the steps to login to Steam. You will see a button that looks like
When you click the button a new page will open and you will be redirected to Steam Sign-In. Verify your URL is https://steamcommunity.com/openid/login. Verify the sing into is eboostgames-com.api.oneall.com. Page will look like this page.
Enter your credentials and click [Sign In]. After successfull login window will close and you will be redirected to eBoostGames.com.
NOTE: *If you have Parent lock enabled you will need to login twice after you enter your passcode.