Similar problem to one raised June 17th:
http://www.macosx.com/content/faq.php/q3766/Opening-Office-98-Files-From-Osx-Finder.html
I'm having same problem under 10.4.2 with Photoshop files and Sit files - fires up app, but won't open the actual file.
Dragging file icon over the app icon...
