Do you guys not remember who made those templates in the first place?? MUHAHAHAHAHAHA!!
Quite sadly, the guy who has Dominion no longer shows up in my playgroup, and no one is willing to buy a new set, and Iso is down. So I basically retired from Dominion.
I am working on it now. Just need the $X+ images. (Looking at Schneau)
EDIT:
Updated {{Card2set}} and {{Card2cost}} templates.
For those who don't know, the infobox get costs and set names from those templates if none is specified.
Those templates are just exhaustive lists of the cards and their corresponding costs/set names.
Also updated the {{Cost}} template for $2+, $3+ and $4+
Just hard-coded them to map to File:CoinXplus.png
Icons breaking are expected.
Someone upload the images please. (Looking at you again, Schneau)
EDIT2: DStu you can start clearing the cost and set parameters from the Guild cards pages.