>Zaraq,
>
>How about:
>
>INDEX ON ;
>IIF(MONTH = "JAN",1,;
>IIF(MONTH ="FEB",2,;
>IIF(MONTH="MAR",3,;
>IIF(MONTH="APR",4,;
>IIF(MONTH="MAY",5,;
>IIF(MONTH="JUN",6,;
>IIF(MONTH="JUL",7,;
>IIF(MONTH="AUG",8,;
>IIF(MONTH="SEP",9,;
>IIF(MONTH="OCT",10,;
>IIF(MONTH="NOV",11,;
>IIF(MONTH="DEC",12,0)))))))))))) TAG WHATEVER
>
>HTH

If we're going to use dirty tricks 'round here, how about

index on atc(LEFT(month,3), "JAN FEB MAR APR AUG MAY JUN JUL AUG SEP OCT NOV DEC") tag whatever

It won't give the exact numbers, but it will put them in sequence, and should be somewhat faster.