OK, here is other solution for another type of print order:
- add new report variable, let's call it _RecordNo with the following attributes:
    - Value to store: _RecordNo + 1
    - Initial value: 0
    - Reset at: End of Page
    - Calculate: Nothing
- now in Details area you may use that variable to determine the column number by using the following formula:
CurrentColumn = Mod( _RecordNo, NumberOfColumns)

Hope this helps.

>Hi Alex,
>
>I appreciate your kind reply and your brilliant idea makes
>my sight really deepen in report design.
>Though your idea might not be applied to my case because of
>column by column order, i will try to do another way of thinking
>on the basis of your idea.Thanks again.
>
>H.K.Lee