Addressable form for displaying activities' views

There are two different forms to display views in MS CRM 4. One for activities' views and the other one to dispaly other entities' views.

I used to use following code to generate url for addressable form to display particular view:

Recently I found that homepage.aspx incorectly displays activities' views. Columns From and To were empty:

The right way is to use home_activities.aspx if you want to display activities' views. The code was changed to:

home_activities.aspx displays activities as shown here:

You can read more about addressable forms here: