I installed Coderush express and I can see that it is installed. (I can see that Camel Case Navigation works). But I can see any other feature works. Based on this page: http://community.devexpress.com/blogs/markmiller/archive/2009/06/25/coderush-xpress-for-c-and-visual-basic-2008.aspx
I cannot see any of these feature to works:
Tab to Next Reference : no effect when I put caret on a variable and press tab ( a tab inserted at the middle of my variable name!)
Highlight All References: pressing ctrl+alt +u add a ascii character to source code.
Quick Navigation: Ctrl +Shift + Q has no effect.
Quick File Navigation : Ctrl +Alt +F brings up F# interactive
Selection Increase and Selection Reduce doesn't work: generate a beep
Declare: ctrl +` has no effect.
and ...
Any idea why this is happening? I am using VS2010.
Presumably due to your using a different version of Visual Studio.
The page you linked to is pretty clear about it being for Visual Studio 2008, but you've included the visual-studio-2010 tag.
Edit
Version of Visual Studio wasn't the problem after all.
It appears to just be that the tool makes very little visible change to the Visual Studio user interface, so it looks like it hasn't loaded.