Overview diagram of DTE! http://msdn.microsoft.com/en-us/library/za2b25t3(v=vs.80).aspx
Tutorials: http://msdn.microsoft.com/en-us/library/5abkeks7(v=vs.80).aspx
Attach to instance http://msdn.microsoft.com/en-us/library/ms228755(v=vs.80).aspx
Attach to visual studio http://msdn.microsoft.com/en-us/library/68shb4dw(v=vs.80).aspx