Credit Card entry charge details

using Sage 100 and trying to figure out how to see the detail underlying Credit Card payment entries.  We enter the total payment to, say, Amex, with the underlying individual charges, but then can not go back to find out what those charges are.  Looking in the GL Detail only shows the dollar amount and "Credit Card" in the individual GL account for any given individual charge (ie associated VENDOR name not visible.  HELP!?!?!?