How can I resize the side panes?

Good day everybody
I'm trying to make the side-panes (results navigation pane and search pane) smaller, narrower, as my screen resolution is small, and they are taking up both summed nearly the half of it, leaving a small space for the main results frame.
I tried to do it selecting the border and resizing them, but there's a limit I can't go beyond, and they are still too wide for me. It doesn't matter how much I try to, they won't get narrower.
This is exactly how it looks like, at actual resolution: http://img268.imageshack.us/img268/8636/screenov.png
I'm using version 296d6d5 compiled from git on Ubuntu 10.04.
Thank you for your help, it's very much appreciated.

I'm trying to make the side-panes (results navigation pane and search pane) smaller, narrower, as my screen resolution is small, and they are taking up both summed nearly the half of it, leaving a small space for the main results frame.
I tried to do it selecting the border and resizing them, but there's a limit I can't go beyond, and they are still too wide for me. It doesn't matter how much I try to, they won't get narrower.
This is exactly how it looks like, at actual resolution: http://img268.imageshack.us/img268/8636/screenov.png
I'm using version 296d6d5 compiled from git on Ubuntu 10.04.
Thank you for your help, it's very much appreciated.