You may notice, when installing VS.NET 2005 that it's a little "greedy" and automatically imports all of your VS.NET 2003 addins. This confuses CodeRush which uses different hooks into 2003 vs. 2005 but can be easily fixed by uninstalling and reinstalling CodeRush. CodeRush will then detect BOTH 2003 and 2005 and work with both.
Scott Hanselman is a former professor, former Chief Architect in finance, now speaker, consultant, father, diabetic, and Microsoft employee. I am a failed stand-up comic, a cornrower, and a book author.
Disclaimer: The opinions expressed herein are my own personal opinions and do not represent my employer's view in any way.