INFO51  The images in MacTarot are based on the 1909 Tarot deck known as the 'Pamela-A' deck of cards with the dried mud pattern on the back. These cards are in the public domain in the USA.

Robert King has made his own changes, both in design and cosmetic to the 1909 Deck and these are Copyright 2003 by Robert King. This is the deck used within MacTarot.

The 1909 deck was a collaboration between Pamela Colman Smith and Dr Arthur Edward Waite. Both of these people died more than 50 years ago.

Several companies claim copyright over later versions of the cards. The only version clearly in the public domain is the 1909 Tarot deck by Pamela Colman Smith.

If you can obtain a 1909 'Pamela-A' deck then you can use images of these cards for anything you wish, either within programs, in books, on web sites or even create your own derivative work.  
(Version 1.90)

JOESCHISA  Thanks to the developer for the information, but from my standpoint, I wanted the thoth deck (Crowley's) also (my program was partially for comparitive purposes, not mainly "spreading" of the deck). Good to know that there's a deck in public domain though. I came to the conclusion that the only way to go with my program was to let people scan their own decks and import them into database, but decided it was probably too much to ask and the project was abandoned accept for personal use.  
(Version 1.90)

FYREFLYE  The developer fails to mention that even if you could find a copy the very rare Pamela "A" deck it would cost you several hundred dollars through an auction house or eBay.  
(Version 2.0)

JOESCHISA  I know nothing about the Pamela "A" deck, but the cards in the screenshot don't look any different from the standard Rider-Waite Deck; if one is just talking about the backing pattern of the cards (I don't know) it seems irrelevant to the source of the front side pictures.  
(Version 2.0)

FYREFLYE  All you'd ever want to know about the various Rider-Waite-Smith editions:

http://home.comcast.net/~vilex/  
(Version 2.0)

JOESCHISA  Thanks for the link. It seems the copywrite status on Tarot Cards is slightly complicated, perhaps unclear and rather like a game of poker in the backing up of claims and pursuit of lawsuits.   
(Version 2.0)

FYREFLYE  All you need to know about RWS copyright issues is that U S Games, which holds the current copyright, will aggressively litigate against everyone and anyone they believe is violating it. And they have a lot of money to do so.  
(Version 2.0)

JOESCHISA  From a link to "copywrite" questions on the link you provided it seems to be suggested that the copywrite does not apply to the pictures, rather to the backing and the packaging, though also mentioned is the agressive defense of their territory by those concerned with copywrite infringement on what they "own" (which I have no argument with, otherwise I would have never bothered ask for permission when I wanted to put a "tarot deck comparison spreader" freeware program out). Anyway, it's probably a dead issue for me, be it just the backing that's protected or not, though I maintain my curiosity and would wonder what Waite, Crowley et al. might feel about their creations from whatever level they be at (perhaps level nil) though feelings from ghosts would no doubt be besides the point legally.  
(Version 2.0)

HOLYPOLY  Except your own analyst, of course.

>8=D))))  
(Version 1.90)

THESAGEGAME  Check out Sage Mental Spa. We wrote a new deck and did all of the artwork  
(Version 1.52)

ANONYMOUS  You and baby jesus??? Your a nutter!  
(Version 1.5)