booking own tour from vila with crusie ship in town

hi we are in vila for one day only, on saturday, 5 july, from the cruise ship. the tours p&o provide are extremely expensive. i tried to book online a village circle island adventure, including trip up epule river and village visit but the operator, adventures in paradise tours, told me that they worked only for p&o when the ships were in.

does anyone know another tour operator i could contact, or if i could just arrange a tour from the wharf with a local when we arrive? and either do around the island or visit the ekasup cultural village? and can you pay in australian dollars. we are a family of 4.

thank you for any assistance you can offer mike