SRL Archive - Help

I just downloaded SIMBA and am trying to get it ready for RS botting, I'm using this guide to go through it: http://villavu.com/forum/showthread.php?t=47714

When I enable extensions.sex and enable the extensions menu and go to check for updates in the dialog box it says this:

You have a new update available for Extensions!
Extensions Updater: Local Version - "1" | Remote Version = "6"
Extensions Updater: Update File - "http://wizzup.org/static/srl/exten.tar.bz2"
Extensions Updater: Downloading…
Extensions Updater: Decompressing…
Extensions Updater: Extracting…
Extensions Update ERROR: Couldn't extract the tar archive.

PLEASE HELP!

Run it again. If it fails again run Simba as admin.

Thanks so much :d :d :d