I am a new OllyDbg user, and I cannot find a way to allocate ASM code. I checked the settings and it looks like the configuration is correct. In addition, I tried two versions of OllyDbg (1.1, 2.0).
Use Options -> Appearance -> Code highlighting to define the allocation schemes, and right-click the window in which you want to apply the settings, and Appearance -> Highlighting to apply it (2.01 beta 2).
Options -> Appearance -> Code highlighting
Appearance -> Highlighting