Hi:
Look at Example 3 in this paper:
http://www2.sas.com/proceedings/forum2008/173-2008.pdf
You can't sort directly on an ANALYSIS variable -- if your report is a SUMMARIZED report -- however, you can make a copy of the analysis variable and then use that copy of the variable's summarized value to control ordering. That's what Example 3 shows.
If you have a DETAIL report -- where each report row represents 1 observation in the data set -- then you can control the order of the detail report by sorting the way you want with PROC SORT -- before the PROC REPORT step. Then if you list your variables as just DISPLAY and ANALYSIS, you will get the SORT order in your report.
cynthia