Thread:Sinthorion/@comment-25012056-20150626153757/@comment-27723099-20150627150333

Sorry for the late answer.

Minecraft changed to code names instead of numeric IDs. Numeric IDs still work in 1.7 (they were removed in 1.8) but it's better not to use them. Forge dynamically sets the numeric IDs while loading and they can be different for every player or maybe even when you restart the game.

The code names you are looking for are  and. Metadata unimportant.