2004-10-04 : You do not get a chance to pay any optional costs, such as Kicker, on the imprinted card.

2004-12-01 : Most creature tokens have no mana cost and a converted mana cost of 0, but a creature token put onto the battlefield by Soul Foundry has the same mana cost and converted mana cost as the card it copies.

2004-12-01 : Soul Foundry puts a token copy of the imprinted card onto the battlefield. The token is put onto the battlefield, not cast.

2004-12-01 : The token is an exact copy in every way, except that it’s a token, not a card.