tree view question / hightlighting rows

[Alexander Nagel <alexander acwn de>]

Hi,

i have a treeview which displays a list of filenames in one column and 
other things in other columns. I can iterate successfully through the list.
How can I highlight the current row? With "highlight" I mean that the 
row looks like selected by the user.
My next question/problem then is: if the list is longer than the current 
scrolledwindow, how can I autoscroll the hightlighted row is always 
visible to the user?
Hope you understand what I mean.
bye