Bart,
There are a couple of typos on your xql page.
("XQL 1.0" "<?xml version=\"1.0\"?gt;\n<!DOCTYPE queryset PUBLIC \"-//OpenACS//DTD XQL 1.0//EN\" \"xql.dtd\"gt;" )
and could you give all of us non-lisp programmers an example of setting sgml-custom-dtd? I tried many ways and it never worked.
Thanks