Explicitly setting the initial directory on the tree pane

I am using the ActiveX version of the Image Uploader in a two-pane layout. It seems like the control "remembers" the last directory selected whenever the control is rendered (so if I select the C:\Temp\Images directory in the tree pane, then the next time I create and render the control it will start with that directory as the selected directory).

Is there a way to explictly set the initially selected directory in the tree pane? This would also presume that I can determine what directory is currently selected (which I don't believe is possible), so this might not be a viable option. Alternatively, is there a way to have the initial directory differ by page?

Here is the problem I am trying to solve. I have two separate web pages (ASP.NET) that have the Image Uploader control on them. I would like the last selected directory to be able to be different on the two pages. Here is the behavior I'm seeing (and what I'd like to see):

1. User visits Page1 and selects the C:\Temp\Images folder
2. User visits Page2, which now has C:\Temp\Images folder selected, and selects the C:\MyImages folder
3. User goes back to Page1 and sees C:\MyImages selected (want it to still have C:\Temp\Images selected) and reselects C:\Temp\Images
4. User goes back to Page2 and sees C:\Temp\Images selected (want it to still have C:\MyImages selected) and reselects C:\MyImages
5. Etc.

I've looked through the help file and didn't see any properties or methods that would let me accomplish this. So, if it is not possible, I understand. But I'm hoping I've just missed something or there is some sneaky work-around I've missed.