How to setup a config file in 1.7.10?

[darthvader45]

I decided since the owner of ChristmasCraft(aka newthead on the Minecraft Forums) has been away from his mod for more than a year, I would update his mod to 1.7.10 from 1.6.4 and give credit as well as posting a link back to his thread.  However, it seems that the Configuration class no longer has a method for accepting blocks/items(getBlock and getItem, respectively).  How can I create customizable ids in a config file in 1.7?

[darthvader45]

Ok, so now I'm having trouble with the WeatherTickHandler and PlayersSleepingHandler.  Basically, the weather handler makes all the biomes colder, meaning snow in every biome.  The sleeping handler sets it so that when the player sleeps and has stockings placed, they get filled with a present(also, if a christmas tree is built(aka the base has been placed down), presents are underneath.)