No there is currently no toolbox... msi for Visual studio 2008. There are plans and work in progress on supporting VS 2008, as well as MS server 2008 among other things.
Take a look at this link. This will help you a bit on your way.
... and now, is there a ToolboxControlsInstaller for VS2010? Or do you need to go about it the same way ... by first installing against VS2005? What will give the EPiServer templates under "Add new item..." in VS2010?