I've just changed the main credit card processor from Plimus to FastSpring.
I'm trying a break from Plimus 'cause (lately) MOST of my buyers have had trouble downloading the file from them after purchasing.
I'm trying FastSpring 'cause Cliff Harris (of Gratuitous Space Battles) recommended them.
Please let me know if YOU have any problems ordering or receiving your copy of Artemis. Thanks!
Creator of Artemis