MDX Equivalent in BPC NW

Hi ,

I have the following MDX used in the Dimension property (BPC MS version)

iif(ISLEAF([Time Dimension].currentmember), iif( [Time Dimension].currentmember.Properties("MONTH_WEEK") ="1", (ACTUAL),(FLASH_W01)), Aggregate([Time Dimension].currentmember.Children) )

Can this be possible in BPC 75 NW version?

http://support.dspanel.com/help4/Web_Part/Examples/MDX_Examples.htm
Regards,
Rohit