VMWare is a package. If you right click on it you should see "Show Package Contents." This will show you a "Contents" folder and inside that is a "Resources" folder.
Inside the "Resources" folder is another package called "naos-1.0.vmwarevm". Again, right click on that and "Show Package Contents." Inside this package there are two .vmx files, "Importer" and "vadk-base".
Not sure which one you need to edit, probably "vadk-base.vmx". Be sure to back up the file before you edit it.
-Keith