On Fri, Jun 13, 2008 at 3:07 AM, Nicolas Mailhot <nicolas.mailhot@laposte.net> wrote:
> [1] http://www.packagekit.org/temp/gpk-application-multiple.png

I think your main problem was the tabs gallore on the right side. It's
probably better to have just one column with information presented
sequentially in it

Yes, since its presenting information and not UI, use a collapsible tree. Like say, Wireshark's packet information display.