Editing SSRS 2005 Reports in VS 2008

I have an old Report Server Project created in Visual Studio 2005. The reports are deployed to an SSRS 2005 Server.

When I open this project in Visual Studio 2008 it converts the project file and then when I try and deploy any of the reports (from Visual Studio 2008) I encounter this error:

The report definition is not valid. Details: The report definition has an invalid target namespace http://schemas.microsoft.com/sqlserver/reporting/2008/01/reportdefinition' which cannot be upgraded.

Is there anyway I can edit and deploy my report files in Visual Studio 2008 without upgrading them. This would save me having to install V开发者_高级运维isual Studio 2005 on my new laptop.

As far as I know there is no way of editing SQL 2005 Report files with VS 2008. That's why we still have VS 2005 installed here.