It is supposed to have an attachment(wmv) but all I receive is a huge amount to capital letters and numerals.
You see them inline in kmail? Or does kmail open an editor (e.g. kwrite/kate) showing this?
In either way, you should be able to open/save the attachement by right clicking on its icon/entry in kmail.
if you can't see the attachement itself, change the viewing options under [view ->attachements -> as icons]