Hi laurellee,
Since these listings failed to post because the credit card you had on file with eBay expired, you should be able to post them successfully as soon as you've placed a new valid payment method on file with eBay. It sounds like you've already done that, so I recommend scheduling these listings again!
Any additional questions or concerns? Please file a support request using the appropriate link on our help page: http://www.auctiva.com/free-auction-software-help/help.aspx
-Mike