SBS2003 R2 Monitoring and Reporting problems

Hello experts,

I have 2 Windows Small Business 2003 R2 Servers running at different customers.
They both are experiencing the same problem which is the following;
- These servers do not sent the daily performance reports, when checking on the server we get the errormessage that the page can not be displayed
  (Screenshot: http://download.2r.nl/screenshot/error1.jpg)
 * I checked the monitoring service, it's running.
 * Checked the logon (adminpass was changed, this was working ok, no events about that)
When i check the eventlog i get the following error event:
=======[Start EventLog dump]====================
Event Type:      Error
Event Source:      ServerStatusReports
Event Category:      None
Event ID:      1
Date:            7-5-2007
Time:            13:19:01
User:            N/A
Computer:      SERVER01
Description:
Server Status Report:
      URL:            http://localhost/monitoring/perf.aspx?reportMode=0
      Error Message:      The system cannot find the file specified.
      Stack Trace:         at Microsoft.SBS.UpdateServices.ConfigurationHelper.AUPolicySetupClass.GetPolicyConfiguration(SBSPolicyType type, AUInstallationOption& pInstallationOption, Int32& piInstallationDay, Int32& piInstallationHour)
   at Microsoft.SBS.UpdateServices.DataProvider.GetUpdateSchedule(String GroupName)
   at Microsoft.SBS.UpdateServices.StatusPage.Utility.GetUpdateSettings()
   at usage.frmPerf.renderReportWorker()
   at usage.frmPerf.renderReport()

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
=======[End EventLog dump]====================

As shown in the event log the problem is connected with windows update services, when i check the update services status in the servermanagement i get the following message:
(screenshot: http://download.2r.nl/screenshot/error2.jpg followed by the page http://download.2r.nl/screenshot/error3.jpg)

At the moment i'm quite clueless as of what is causing these problems.
I checked these settings/conditions
- All files are at the locations where they are supposed to be.
- All DLL files are registered
- All security settings are as they should be (Permissions are set according to the manuals i was able to find)
- All services are running.
- Rebooted the servers several times
- Re-installed Small business components

The only thing changed on both servers is: Automatic update in domain policy is set to disabled, this is due to major performance lost on client computers (svchost.exe constant @ 100% CPU usage).
This modification was prior to the errors and after resetting these modifications to the original state the problem was still there.