First feeding guidelines! 
1) wait at least a week after bringing it home before you try to feed your snake the first time.
2) feed appropriate sized prey items. After the first meal or two, most balls can take regular adult mice.
3) If the snake doesn't eat the first time you offer food, wait a WEEK and then offer the food again. Do not leave the rodent in for more than 10-20 minutes, and keep an eye on them. Live prey can seriously harm your snake.
4) Do NOT handle your snake at all until it has eaten at least twice (preferably 3-4 times) for you in a row! Handling the snake causes stress and thus makes them take longer to settle in.
5) Make sure there's at least two hiding places (1 on the hot side, 1 on the cool) to make the snake feel secure.
I hope that helps! Just be patient, the snake will eat eventually 
~jenny
-----
"The python has, and I fib no fibs,
318 pairs of ribs.
In stating this I place reliance
On a seance with one who died for science
This figure is sworn to and attested,
He counted them while being digested."
~Ogden Nash
jenny.thegreenes.org
"If you're happy and you know it,
Bomb Iraq!
If you cannot find Osama,
Bomb Iraq!
If the terrorists are frisky,
Pakistan is looking shifty,
North Korea is too risky,
Bomb Iraq!
