I'm visiting CTI 22nd Feb and need some help!

I've booked with Thomas Cook and wondering if I can make use of the Couples Lounge and transfers or do I have to take the Thomas Cook ones? If I can use the Couples do I have to inform my Thomas Cook Rep? Also the excursions that are included, does anyone know how long on average do this last and where do I need to book them?

Can wait to go as its my first time for CTi and Jamaica.