Unable to uninstall Exchange 2000, HELP!

Hi There,
I have succesfully installed a new exchange 2003 server and am in the process of removing my old exchange 2000 server which i no longer need.

I have followed MS KB 307917 in how to remove the first exchange 2000 server.
When i run add/remove programs and try to remove exchange 2000 from the wizard I get the following error message: "Setup encountered an error while checking prerequisites for the component "Microsoft Exchange 2000"; 0x80072030 (8240): There is no such object on the server

I have then gone through MS KB: http://support.microsoft.com/kb/283089 which details this error. There are 3 mailboxes left on the old server:
SMTP (servername)
System Attendant
System Mailbox {....string...}

In active directory i have located the System Mailbox under Microsoft Exchange System Objects however I cannot remove this mailbox from Exchange system Manager.

Am I on the right track here in thinking that this mailbox is preventing me from uninstalling Exchange 2000 and how do i solve this problem.

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For checking hidden mailboxes , open ADUC(Active Directory Users and Computers)->right click on Domain and select Find->Click on Advanced Tab->
In Field select User and then select Exchange Home Server->In condition select Starts with or Ends With and type Exchange 2000 Server Name->Click Add->and now search.It will show you hidden mailboxes.

You can move or delete these mailboxes. and will be able to uninstall E2k.
lutherpendragonAuthor Commented:
Hi Amaheshwarj,

I have done what you have said and the user: SystemMailbox{-ID string-} appears in the list.
This is the system mailbox i have found earlier, is it still ok to delete the user and in doing so will this remove the mailbox?
lutherpendragonAuthor Commented:
I have managed to get around this. The solution was to indeed follow MS KB 283089. Even though MS say that this system mailbox residing on the old server should not stop the uninstall it did.

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