Problem showing activities specific for WSS libraries in Visual Studio 2005

I'm working on a sharepoint sequential workflow and I have a problem: when i add in toolbox the actions for microsoft.sharepoint.WorkflowActions.dll the fact is I see only a part of them. 

I watched this video 
http://channel9.msdn.com/ShowPost.aspx?PostID=230212#230212
and about 07:38 i can see a bunch of activities added from  microsoft.sharepoint.WorkflowActions.dll into the designer. On my computer I see only the next activities :

·         All Task activities (CreateTask, DeleteTask, CompleteTask, UpdateTask, OnTaskChanged, OnTaskDeleted, OnTaskCreated, RollbackTask, UpdateAllTasks)

·         OnWorkflowActivated

·         EnableWorkflowModification

·         OnWorkflowModified

·         OnWorkflowItemChanged

·         OnWorkflowItemDeleted

·         SendEmail

·         SetState

·         LogToHistoryListActivity

·         DelayForActivity

·         DelayUntilActivity

So if you know why I see only a part of them in that video please post. The workflow works fine but I need to modify the Sequential workflow design.

Thanks.

Can someone help pls?

Don't you have any ideas?

As I said please watch http://channel9.msdn.com/ShowPost.aspx?PostID=230212#230212 
I followed the same steps within this video but when I load the microsoft.sharepoint.WorkflowActions.dll into the toolbox list I see only a few actions. Why?

You really don't have any ideas?

I'm still waiting...

Are you developing on a remote server or on the server OS where SharePoint is installed?

Sounds like you might need some more DLLs