Anyone know what the WWW. entry is all about?
Sure I do. If you type in your browser eg:

mywebspace.com and the browser can’t find it, it wil try www.mywebspace.com

as long as it only say www there, there is no problem. If there is anything else there it is not normal and should be fixed.

Click on the link in my signature and visit the HijackThis section for all the info you need/want.