U r right. It is possible, but for IE only, for my knowledge (Not sure, 
from what version):

As for the width of frames:


<frameset id="frameset1" rows="0,*">   <!--Hidden upper frame)-->
<frame name="upFrame" src="stuff.htm"> 
<frame name="downFrame" src="secondFrame">
</frameset>

Than, in one of the frame, when trying to change the 
rows value, do the following:
parent.frameset1.rows = "100,*"; 

I don't know as for the scrolling part, but mayve set it to auto.