I have setup my local dnn site using the install version of DNN version 4.8.4 . I'm using visual web developer 2005 and sql server 2005. I upgraded my forum from recently to the latest version, and i am getting these errors when i try to build my site ( and i have no source code to check apart from front end pages):

Error 1 'DotNetNuke.Modules.Forum.PMThread.Private ReadOnly Property ForumConfig() As DotNetNuke.Modules.Forum.Config' is not accessible in this context because it is 'Private'. C:\siteRestoredFromPowerDNN31Dec08\DesktopModules\Forum\Forum_PMThread.ascx 4 

Error 2 'DotNetNuke.Modules.Forum.PMThread.Private Function formatBody(Body As Object) As String' is not accessible in this context because it is 'Private'. C:\siteRestoredFromPowerDNN31Dec08\DesktopModules\Forum\Forum_PMThread.ascx 81 

Error 4 'DotNetNuke.Modules.Forum.PMThread.Private Function formatBody(Body As Object) As String' is not accessible in this context because it is 'Private'. C:\siteRestoredFromPowerDNN31Dec08\DesktopModules\Forum\Forum_PMThread.ascx 1 1 C:\siteRestoredFromPowerDNN31Dec08\

Error 5 'DotNetNuke.Modules.Forum.PMThread.Private ReadOnly Property ForumConfig() As DotNetNuke.Modules.Forum.Config' is not accessible in this context because it is 'Private'. C:\siteRestoredFromPowerDNN31Dec08\DesktopModules\Forum\Forum_PMThread.ascx 1 1 C:\siteRestoredFromPowerDNN31Dec08\

Error 6 File 'Forum_PMThread.ascx.vb' was not found. C:\siteRestoredFromPowerDNN31Dec08\DesktopModules\Forum\Forum_PMThread.ascx 3 39 C:\siteRestoredFromPowerDNN31Dec08\

Please could somebody help me, i want a clean solution with no errors, surely an upgrade should take into account which old files are no longer available and therefore i should not receive these errors.