Steve,

ThisForm.MyTreeView.Nodes(KeyValue).Selected = .t.
ThisForm.MyTreeView.Nodes(KeyValue).Expanded = .t.

The first line makes sure the node you want is selected, and therefore visible, the next line expands it.

Note that you must have some method of knowing what the key values are. When populating treeviews from tables, I use a combination Alias+":"+Surrogate Key value.

Hope this helps.