Thanks for the quick reply.
That is a total bummer. I already tried to "copy" the Linux guest to ESXi using vSphere 5.1 and it won't run.
Then tried to move the .vmware folder with tar and rsync using CLI and a third time just using rsync using CLI. None of copies ran. But the details of the vm did transfer properly.
Talked to a friend who told me I had to use Converter. So now I know that doesn't work either.
I'm new to all this and 3 days into debugging why something that should be easy isn't.
I thought that I could create a vm and just move it between my version of Fusion to ESXi. (???)
Frustrated!