I think we still have some links to the SDM lying around, which should now get pointed to the bug-tracker. Also, we may want to put up a notice on all pages in the SDM saying "Don't post new bugs here, go to bug-tracker."
I've fixed the links on the index.adp "Congratulations" screen in the OpenACS software itself.
Perhaps it's also time that we change the openacs.org/sdm link to point to the bugtracker instead of the old SDM?
/Lars