Dreamweaver 7 MX2004 will not launch

When I try to launch Dreamweaver 7 MX2004 to edit my website (I have been using
this for four years) the application will not open and I get the message:

The application "(null)" could not be launched because of a shared library
error: "7<Dreamweaver><Dreamweaver><Fireworks Engine/Importer><>

Any clue about what to do? The Application icon is still in my toolbar but
was not in my application folder.
I did find it using "find" the application and dragged it to the finder. I am
using a Mac OS 10.3. I think the application is still in my computer but the
"library error" is preventing it from launching.