Newbie - How do I DeepLoad?

I've combed these forums for instructions on how to DeepLoad, and I think I'm either missing something or else my situation is somewhat unique (perhaps my DB architecture is off?). Here's what I'm trying to do:

I have a table called Task:

PK   TaskID
        Name
        Desc

I have another table called Task_Date:

PK   TaskDateID
FK   TaskID
        Date
        Hours

Now, I've instantiated a Task object using the following:

Task tsk = AgencyQueue.Data.DataRepository.TaskProvider.GetByTaskID(2);

Now my question is, how do I use DeepLoad to get a collection of associated TaskDate records? None of the documentation I've read really works - there are some things I think I should be getting with intellisense (according to the examples) that I'm not getting and I'm not sure why?

I tried this and no dice:

DataRepository.TaskProvider.DeepLoad(tsk, true, DeepLoadType.IncludeChildren, typeof(TList<TaskDate>)); 

I think something like this should work:

taskService.DeepLoad(task, false, DeepLoadType.IncludeChildren, typeof(Tlist<Task_Date>);

 You should see your taskdate records in task.Task_DateCollection

There is no TaskService in my DAL? 

ok, i've got TaskService now, but i'm still totally confused. i have this:

TaskService tskSvc = new TaskService();
Task tsk = tskSvc.DeepLoadByTaskId(2, true, DeepLoadType.IncludeChildren, typeof(TList<TaskDate>));

so how do i access the list of TaskDate records?

The TaskDate records should be hanging off the Task record (tsk).

 As they are children records, it should be something like tsk.TaskDateCollection

I'm not getting TaskDateCollection in intellisense. Can you tell me what I'm doing wrong and what I need to do to fix this? 

 Well that is odd. Assuming that you have a relationship (in SQL) between Task.TaskID and Task_Date.TaskID, and generated the code after the relationship was made, you should have a TaskDateCollection on your Task entity.