First- has he ever eaten toads? If not, why would you start now? That would be a bad move.
Second - Why are you worrying so much after just 2 weeks? Give him time to settle in. Monitor his weight, and if it remains pretty steady with minimal loss, then just give him time. If you have already tried feeding him several times in the two weeks, then he is probably a stressed snake.
Third_ have you gotten a fecal done by a vet. Always good to get new snakes checked out, as parasites are quite common in hoggies, and can be the cause of fasting.
I bought a breeding trio last year. The male ate like a champ, the females went on a 4 month fast. No big, just the nature of the breed. You just need to monitor them during this time.
Also, many animals are still in a hibernation mode and might not eat as often.
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Jenea
Guardian Reptiles
"The beatings will continue until morale improves!"