Variance analysis - spend variance versus FX variance

Question

We would like to have the system store Actuals at a Plan FX conversion rate and Forecast FX conversion rate.  Similarly Forecast versions also.  Created couple of category members for actuals which are ACTUAL_PR (actual at plan FX conversion rate) and ACTUAL_FR (Actual at forecat FX conversion rate).  Also populated Category properties (Rate_Cageory, FX_Source_Category, Rate_Year, Rate_Period, FX_Difference_Only) for the members.  I tried to use these properties in the script logic and does not seem to work for me.  I am sure others have done this.  Can you please send the script that you have used?  I have used a work around and it works.  Here is the work around scrip that I used.  Looking for the best solution.... 
*XDIM_MEMBERSET CATEGORY="ACTUAL"
*WHEN RPTCURRENCY
*IS LC
*WHEN ACCOUNT
*IS BAS(EXPENSES)
     *REC(FACTOR=1,CATEGORY="ACTUAL_PR")
     *REC(FACTOR=1,CATEGORY="ACTUAL_FR")
*ENDWHEN
*ENDWHEN
*COMMIT
*LOOKUP RATE
  *DIM R_ENTITY="GLOBAL"
  *DIM R_ACCT=ACCOUNT.RATETYPE
  *DIM SOURCECURR:INPUTCURRENCY=ENTITY.CURRENCY
  *DIM CATEGORY=CATEGORY.RATE_CATEGORY
  *DIM MEASURES = "PERIODIC"
*ENDLOOKUP
*WHEN RPTCURRENCY
*IS LC
*WHEN ACCOUNT
*IS BAS(EXPENSES)
  *WHEN ACCOUNT.RATETYPE
  *IS AVG,END
    REC(EXPRESSION=%VALUE%LOOKUP(SOURCECURR),RPTCURRENCY="USD")
*ENDWHEN
*ENDWHEN
*ENDWHEN
*COMMIT

Answer 1

hey ,why dont you use predefined currency conversion program.
*SELECT(%PLAN_FX%,[RATE_CATEGORY],CATEGORY,"[ID]=ACTUAL_PR")
*SELECT(%FC_FX%,[RATE_CATEGORY],CATEGORY,"[ID]=ACTUAL_FR")
*SELECT(%RPT_CURR%, "ID" , "RPTCURRENCY", "[CURRENCY_TYPE]='R'")
*XDIM_MEMBERSET CATEGORY="ACTUAL_PR"
*RUN_PROGRAM CURR_CONVERSION
      CATEGORY     = %PLAN_FX%
      RPTCURRENCY = %RPT_CURR%
      TID_RA = %TIME_SET%
      RATEENTITY = GLOBAL
      OTHER = [ENTITY=%ENTITY_SET%]
*ENDRUN_PROGRAM
*XDIM_MEMBERSET CATEGORY="ACTUAL_FR"
*RUN_PROGRAM CURR_CONVERSION
      CATEGORY     = %FC_FX%
      RPTCURRENCY = %RPT_CURR%
      TID_RA = %TIME_SET%
      RATEENTITY = GLOBAL
      OTHER = [ENTITY=%ENTITY_SET%]
*ENDRUN_PROGRAM