i got a way to open the Server Monitor App on 10.8.4
take the version from Server Admin Tool 10.7.5
then open the app with ctrl-klick > watch package content > go to the folder MacOS
here is the main application drag & drop this on the terminal or symply doubleklick
now make an alias to your desktop
it really works :-) i don't know why apple this has discontinued
hope this help all xserve users
I've built a Mac OS X native app for managing Xserves and other IPMI equipped servers, if anyone is interested.
I may receive some form of compensation, financial or otherwise, from my recommendation or link.
<Edited by Host>