You are entering as an individual but you must assign yourself to a team. If you want to participate but do not have a team then you can choose the "Assign me to a Team" option. If your team is not shown in the drop down list, then enter the name of the team in the "Create TEAM" field.
Once your details of filled in, click the SUBMIT ENTRY button. You will then be directed to a PAY facility. The cost is £18.
NOTE: Your entry into the team event will not be gauranteed until payment is received in full. If you do not have a PayPal account then you can still pay by choosing the Pay with debit or credit card option - Your details will not be stored by PayPal.