dumb tourist questions

Couple of quick questions. ATM machines - Barbados airport or St Vincent airport??
Taxi fare from Barbados airport to St Lawrence Gap?
Taxi fare from St Vincent to Young Island Cut?
I'm sure I'll thing of more as we are quickly approaching cast off! Thanks for your help!

St. Vincent is an EC (Eastern Caribbean dollar) country whereas Barbados has it's own currency, so unless the ATMs have the option of dispenseing in US I would wait until getting to St. Vincent, I havn't been to the St. Vincent airport but someone should know if they have ATMs there. US is accepted evrywhere, but the street exchange rate isn't as good as the bank rate.