Just a note about this beta - if you are running a pirated copy of XP then do NOT install the beta
The install will check for a valid XP install and if it doesn't find it you'll get pop up messages every 30 seconds or so
A co-worker mentioned this happened to him on his home PC
Not that anyone here would be pirates but just a fair warning that if you aren't sure your copy is legit, don't install this
And you should be using FireFox anyway