How to access AutoCAD 2004 with accont16.arx

Hi there and thanks in advanced,

I have seen the info so far in this section on using accont.arx with a VB6 ocx, but I can't find anything on how do you access AutoCAD from your ocx.
eg. I want to click a button to insert a blockreference into the drawing from dockable container + ocx? normally I use
Set acBlockRef=ThisDrawing.ModelSpace.InsertBlock(........)

How is this done with accont16.arx + ocx


This is all I have at the moment in m ocx

Dim WithEvents dockContainer As AcadDockableContainer3
Implements IRetrieveDockableContainer2

Private Sub IRetrieveDockableContainer2_SetDockContainer(ByVal acCont As AC_CONT.IAcadDockableContainer2)

Dim intArrayPosition(0 To 3) As Integer


Set dockContainer = acCont
dockContainer.EnableDockPositions = acDockAny 'acDockLeft + acDockRight

intArrayPosition(0) = 50 ' Left
intArrayPosition(1) = 50 ' Top
intArrayPosition(2) = 300 ' Right
intArrayPosition(3) = 350 ' Bottom

dockContainer.SetPreferredDockPosition acFloating, intArrayPosition
dockContainer.AutoHide = True
End Sub