AndreTheGiant
Immortal
Immortal

For the 4.1 upgrade see:

http://paulgrevink.wordpress.com/2011/02/13/installing-esxi-4-1-update-1-with-the-vihostupdate-utili...

The ESXi 5 is not yet avaible.

Probably on August.

And also NOTE you may be limited with the free version and the new vRAM restriction (only 8 GB of vRAM in the free edition).

Andre | http://about.me/amauro | http://vinfrastructure.it/ | @Andrea_Mauro