Re: "no card"?????
Earlier models of Olympus DC should be using SmartMedia card (SM card).
The file control function of CompactFlash card (CF card) is on the card, while the controlling function of SM card is on the camera. Therefore, old DCs may not able to read large size SM card.
Please check you are using SM or CF first. (SM card is much thinner.)
Anyway, a 5-Y-O DC is an old DC, let it retire from usage may be a good option.
Carmen is Mama and Beta is Papa