The flat edition can be found at
StreamlineDesign - Get Graphic With Us! I used to know the 3D place (maybe not the one you were looking at) but it's not in business anymore.
I just did a Google search for "3d molded lettering" and there's quite a few, too many to list here. If you want the letter to look just like it came on the PT the font name your looking for is "Downtown".
