Does the HELP text applies for D7?

Hello:

I can't seem to get any read out using the instructions in the Help ReadMe file on D7.

Before you can create a formatter you need to know what variables you have to work with, the easiest way to determine this information is by doing the following:
Install and enable the Devel module.
Create a new formatter containing the following code:
dpm($variables);
Setup a Content type with a CCK field type as defined in yout formatter and set the display of the field to use said formatter.
Create a node of the above content type, making sure that the CCK field used by your formatter is populated with sample data.
On the new node you their will be an information display of the entire contents of the $variables variable.

I do this yet I see no information displayed at all. Or maybe I am missing something.

Using the latest dev version from the CVS repo.

Thanks