I have finally set up Esxi 5.0 but for all my other Vms on esxi 4 I open vsphere client 4.1 - 258902. When I have trid to open the new VM I have to open the installer and save. If this overwrites 4.1 can I still open all my other vms and what vcenter could I have.
yes, it works fine. You can run both vSphere 4.1 and 5.0 client on same VM or desktop.
Many Thanks - All now up and running