Here is a recipe, however it uses crystallized Ginger. There are 4 recipes for that at the site below (Neo Soft)......
http://www.NeoSoft.com/recipes/

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Ginger Marmalade

6 Seville oranges (or other thin-skinned orange) juice of 2 lemons
8 c. water
8 oz. crystallized ginger, chopped
1 t ground ginger
4 lb. sugar

Remove orange zest and slice into fine slivers; remove pith. Halve oranges and lemons, remove seeds and
squeeze the juice into a large bowl. Tie the seeds and pith in a cheesecloth bag. Chop the oranges and add
to the bowl. Add the water, cover and leave for 24 hr. Put the contents into a large preserving pan; bring to
a boil, simmer for 1 1/2 hr. Remove the cheesecloth bag; add both gingers and sugar. Stir well; bring back
to a boil and boil briskly for 10 min. Remove from heat and let cool 5 min. Stir well again, then pour into
hot, sterilized jars; seal and process in boiling water bath for 5 min.