we found a problme in the SQL.
we edited the SQL to:
SELECT productoptions.OptionPriceincrement, productoptions.ProductOptionID, options.OptionName, options.OptionGroupID, optiongroups.OptionGroupName
FROM options INNER JOIN productoptions ON options.OptionID = productoptions.OptionID INNER JOIN optiongroups ON options.OptionGroupID = optiongroups.OptionGroupID
WHERE optiongroups.OptionGroupName = 'color' AND productoptions.ProductID = paramItem
to get the options working.
This change will be made in the documentation as well.