Not able to connect to TFS 2008 and TFS 2010 from visual studio 2008

VS 2010 was already installed on my machine and able to connect to both TFS 2008 and TFS 2010 server. Now I need to use VS2008 and need to connect to TFS 2010. I followed the following sequence to installed and update the VS2008 but not able to connect to the TFS 2008 and 2010 both se开发者_JAVA百科rver.

1. install Visual Studio 2008
2. Install VS 2008 Team Explorer
3. re-install VS 2008 Service Pack 1
4. install the Visual Studio Team System 2008 Service Pack 1 Forward Compatibility Update for Team Foundation Server 2010 (VS90SP1-KB974558-x86.exe)

getting same error message "TF31002: Unable to connect to this Team Foundation Server [Servername]..."

You've got all the software, to connect to TFS 2010 you need to use the full url e.g. http://servername:8080/tfs/collection