N00b - how do I mass approve moderation of new users? and more

[usabodyguard]

Im not sure, but I had some server issues and had to reinstall my forums a couple of times.......

during these re-installs, my setting go fubared namely the new user "awaiting moderation"

I have about 20 users in the group, how can I mass approve them, and what can I turn on/off so that the only thing a new user has to do is validate their email and they get full registered user access?

Thanks in advance.

(please explain as to a 5 year old, he might be helping me )