Well, there this page:
http://www.delta.com/skymiles/manage...t/index_DL.jsp
It says you can request online only for DL/DL* operated flights, and for partner flights it says:
For partner airline flight activity, please allow up to 8 weeks for these miles to post.
For our airline partners, send a copy of your airline ticket/ticket receipt and boarding pass(es) to:
Delta Air Lines, Inc.
SkyMiles Account Support
Dept. 654
P.O. Box 20532
Atlanta, GA 30320-2532
or fax: 404-773-1945