when you say to upload the vmx and vmxf file, is it correct that I should delete the vmx and vmxf file from the restored OVF directory before uploading?
Uploading the files will overwrite existing files, so you don't need to delete them manually.
Also when you say add VM back to inventory, do you mean right click the vmx file and say Add to Inventory?
Yes, that's the easiest way to add a VM to the inventory.
André