You can view your current pending applications and see which ones you've been approved for. Once approved, click on the green 'Action' button to connect to that company.
After connecting your accounts will become collaborative and you'll be able to access all of the functionality needed to work with that company and be paid your commissions.
Cover Letters: Using the 'Cover Letters' button at the top right you'll also be able to create and save a standard cover letter for applying to new sales opportunities in the future. Please note, you don't have to do this if you would rather wright a new personalised one each time you apply to work with a company.