rss widget – sorting help

So, I’ve created an rss aggregator in .net to pull in different xml files and output into one rss feed. It is valid RSS but has pubDates in the future since it is used as a type of calendar/events list.

When I add it as an rss widget in the sidebar the items in the feed are coming through in the order they are originally inserted into the feed.

All browsers display the feed in a proper date order, granted I want to reverse that too, but thats the next hurdle.

Is there any way to specify the sort order of rss widget feeds? where is the code for this widget?

any ideas why certain readers sort rss “as is” and others do it by date, or know of widget/plugins that allow you to select?

— yes I could just do this all in my own widget, but I want it to be consumable and portable

Thanks for your ideas