In 1.0.4 i have a problem creating the "Lata tree" i have all the Thermal foundation blocks + all the chems. But in NEI there are 2 same recipes. It shows me the sapling as an exit, and when i grab the lata sapling, it wont move from the Crafting table. (Its similar to creating Nether star that is only doable in Peacefull mode) - you cant "take it out of the craftin table"
You need a stack of each chemical, although only one (IIRC) will be consumed.