Based on Fiscal Week/Year I need to separate week and year in webi

Hi Folks,

I have requirement is below mention.

Fisical Week/Year Fiscal Month/Year Modified Date 19/2011 Jan/ 2012 10/12/2011

Now, I want to Separate Week and year in First column and Month and Year in the second column.

I tried couple of ways and still not clear.

Kindly post me your helpful answers and thanks in advance.

Thanks

ram