Absolutely find the trainers. Introduce yourself, be honest about experience, let them know your goals. Get to know their strong points also. ie- I find the yoga person when I have a muscle that will not let go, or- find the skinny runner when you have a leg problem. If it is a desent gym, they will a variety or nice people to help you. Use every resource you can.
Remember- WARM UP, COOL DOWN, ""STRETCH!!!!!"" fitness will come on its own