I thought they sent you an email to your account email saying what to do. Something about like /testcopy and switch the pater to test instead of live, but I'm not positive. Never been in EQ1 betas. Might try the EQ Support forums. And there's a beta forum somewhere too, but you'd get that in the email also, from what I remember. See http://forums.station.sony.com/eq/
Yther Ore.