For crashes especially, you want to dropbox the dump file archive.  You can get this from a hidden folder as described in the sticky post on reporting bugs.  Here's the relevant info from that sticky:

For crash reports in particular, the most helpful file you can provide is a memory dump that the game will generate when a crash occurs. If you're running Windows XP, there will be a zip file with the memory dump located in Documents and Settings\All Users\Application Data\Stardock\Elemental - War of Magic. If you're running Windows Vista or 7, the zip file will be located at ProgramData\Stardock\Elemental - War of Magic instead.

The file will look similar to this:

Elemental0_98-2010-07-29T23-47-45-488.zip

It contains the debug.err already, as well as a dump of the game state that the devs can use to find the problem in their code.