Former IT company wont give us vCenter password

we have 3 vmware boxes. Apparently the former IT company that was managing this network was using a pc in the server room as the vCenter server. eveything is vsphere 3.5. they wont give us the password for the vcenter account b/c they said its a password they use on all clients and they dont want us to have it. can i install our updated vCenter 4.1 on my workstation and manage the cluster or would all the settings be lost?
Comments
Im not sure. I suggest you also ask this question on VMWare's forum before you risk making a difficult situation worse.
Forgot the Administrator's Password? - Windows Password Recovery - Windows Password Reset
Don't install vCenter on your workstation, except as a temporary solution. It is a database-driven server application that controls the ESX machines, not simply a client.
MCSA 2003, LFCS, LFCE (expired), VCP6-DCV
when we upgrade, should i install this on a server or a stand alone pc like this?