What Are 'members'?, How do I become one? Options

Hello:
When I try to look or read the 'member's lounge' It says sorry but you cant.

Is a member:
1) one with more than 30 posts (needed to read blogs)
2) one that pays a membership to the esoteric library (to download posts)? (so which level of membership or $ ?)
3) some other criteria?

I would appreciate some information on this...
Also I have spent several hours looking at the controls, replys and posts and I can not figure out how to add an attachment to a post (feeling thickheaded (IMG:style_emoticons/default/sad.gif) )

Are members the only ones with the ability to attach files to posts?

I really like this site, and most to the time I have just asked questions (and have gotten very helpful replies), and if I get interesting experiences (which I am hoping for) or come accross interesting information I'll post them here as well to contribute the best I can.

Thanks,
Traveller

I'm sorry you're right Traveller. I checked my admin settings and I remember I've disabled the attachment ability for new member group because spammers had abused this, attached a virus and wiped out the HD of one of our inspecting moderator. Sorry for the inconvinience, but for now just get to 30 post to use that feature.