Reportviewer Error K2 Blackpoint & MOSS 2007

After installing BlackPoint K2 with MOSS 2007 and you try opening the MOSS usage reports you can receive the following error:
The Report Viewer Web Control HTTP Handler has not been registered in the application’s web.config file.  Add to the system.web/httpHandlers section of the web.config file.   at Microsoft.Reporting.WebForms.ReportViewer.OnInit(EventArgs e)
at System.Web.UI.Control.InitRecursive(Control namingContainer)
at System.Web.UI.Control.AddedControl(Control control, Int32 index)
at Microsoft.SharePoint.Portal.Analytics.UI.ReportControl.CreateChildControls()
at System.Web.UI.Control.EnsureChildControls()
at System.Web.UI.Control.PreRenderRecursiveInternal()
at System.Web.UI.Control.PreRenderRecursiveInternal()
at System.Web.UI.Control.PreRenderRecursiveInternal()
at System.Web.UI.Control.PreRenderRecursiveInternal()
at System.Web.UI.Control.PreRenderRecursiveInternal()
at System.Web.UI.Control.PreRenderRecursiveInternal()
at System.Web.UI.Control.PreRenderRecursiveInternal()
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
at System.Web.UI.Page.ProcessRequest()
at System.Web.UI.Page.ProcessRequest(HttpContext context)
at ASP._layouts_spusageweb_aspx.ProcessRequest(HttpContext context)
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
Check if the following rule is in the web.config file from MOSS:

Also check if the Reportviewer dll is in the GAC:

The version off the Reportviewer must be the same as in the web.config. For MS SQL 2005 you’ll need to use the 8.0.0.0 version and for MS SQL 2008 the 9.0.0.0

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