Yes, it is possible to copy a single worksheet multiple times using the 'move or copy' option in Microsoft Excel 2003. Here are the steps to do so:

1. Open the workbook containing the worksheet you want to copy.
2. Right-click on the worksheet tab and select 'Move or Copy' from the drop-down menu.
3. In the 'Move or Copy' dialog box, select the worksheet you want to copy from the 'To book' drop-down menu.
4. Check the 'Create a copy' checkbox at the bottom left corner of the dialog box.
5. Select the location where you want to copy the worksheet to by clicking on the sheet name in the 'Before sheet' list.
6. Repeat steps 3-5 for each additional copy of the worksheet you want to make.
7. Click 'OK' to copy the worksheet(s) to the selected location(s).

You can repeat steps 3-5 as many times as you need to create multiple copies of the same worksheet. This can be a time-saving technique if you need to create multiple worksheets with the same layout or data.