Yahoo Store is capable of processing credit cards via your merchant account. The transactions that are processed via your Yahoo Store will not be archived in your PayJunction account. However, your PayJunction account can still be used to process credit cards.
Please contact PayJunction customer support to obtain the information that Yahoo Store requires. We can be reached at: 1-800-601-0230 Ext. 3, Mon-Fri, 8am-5pm PST You will need to follow the setup instructions as described in the link below:
Yahoo Store / Yahoo Small Business: http://smallbusiness.yahoo.com/ecommerce/