Tim has you on the right track. Return the bulbs you have for 50 watt bulbs. You will also need a lamp that has a dimmer switch so your bulbs aren't on full blast and drying out the tank.
You'll want a medium to large critter keeper with a UTH made for Hermit Crabs placed on the back and yes cover the sides of the setup so the frog feels secure. You can also cover the top of the keeper with Saran Wrap to help hold heat and humidity in, but don't cover the vents on the ends to allow circulation.