Dear Cambridge BedWetter, you sagacious fellow you,   "spelt is a vaiety of wheat. The past tense of spell (hint: also called a past participle), is: "spelled". At least try to get the simple things right eh? You are a Wiki editor (gasp!)  a custodian of knowledge... yours is the duty to pass on the torch of learning to the next generation. (Yawn. In the meanwhile, keep stacking those shelves/answering those 'phones at the call-centre, there's a good fellow).