After completing your account registration it's time to get started:
- Use a modern browser with HTML5 and JavaScript support such as the latest Firefox
- Ensure your Steam Profile and Inventory are public - Making your Steam Profile public
- Verify that the items in your inventory are tradable. - Upgrading your TF2 Free to Play Account to Premium
- Set a TradeOffer URL on your settings page - Setting up your TradeOffer URL