import xml into drupal

Hi
Does anyone know the best way to go about importing an xml file into drupal.

http://www.digitalmassive.com/test/xml.xml

It is not standard rss or atom.

People have suggested that I write my own parser using FeedAPI but I can't believe it is so difficult.
or perhaps you do something with feedapi_eparser?
Is there any information about doing something like this?
I have also looked at the aggreagation module but there is no information on how to write the feed_handlers
http://drupal.org/project/aggregation
Thanks