You can uninstall the GUI version from Control Panel>Add/Remove Programs. To monitor your status, you can keep an eye on your position in the Team
here. You can also set your client up to use one of the Team SETIQue servers so you can see a record of your system's completion times. For more on that, check out the great instructions in the
Team AnandTech SETI setup guide.
By using SETIDriver and having it send its results through a SETIQue server, you can get stats like
these and
these! 
The SETIQue you're seeing here is run by
OrangeKid.
edit: forgot to mention, another nice thing about SETIDriver is that it hides the client so it doesn't have a button cluttering up your Taskbar, just an icon in the System Tray.