Do you mean the items from the preorder, and Lawful Good and Chaotic Evil editions? Those are still in the game. You need two feats to unlock the stores where you can buy them. The name of the feats are Merchant's Friend and Blessed of Waukeen. You can either get them via the givefeat code in the console (the number for the feats are 1764 and 1765) or by using Vordan's Hero Creator (talk to the imp and ask him to change your history).

The necessary merchants appear once certain points in the campaign are reached, starting at chapter two. One is located in the Docks (close to the point where you first appeared in Neverwinter), the next is at the Academy in the Blacklake District, and the last one is in Port Last (either the weapon or the armor smith, I can never remember which one).

To be honest, though, the items aren't that great. You can get much better stuff from crafting. Still, it is nice to have additional merchants so can get rid of all the unnecessary loot you can find. The +1 to all saves from Blessed of Waukeen doesn't hurt either.