Hi:
Check your syntax, I believe the suboption is DELIMITER, not DELIMITATOR. You may need to update the CSV tagset that you're using, especially if you're working in SAS 9.1.3. See this previous posting for more info:
http://support.sas.com/forums/thread.jspa?threadID=5414
When I run the below code in SAS 9.2, I get the ';' used as the delimiter. I believe the delimiter capability was accomplished in SAS 9.1.3 by using an updated CSV tagset template.
cynthia
[pre]
ods csv file='c:\temp\csvtest.csv'
options(doc='Help' delimiter=";");
proc print data=sashelp.class(obs=3);
run;
ods csv close;
[/pre]