Mark H.
Well, actually I at first installed "empty" Revo and quite successively added to it different components such as comments, star rating, etc. But when I stumbled upon Login component I got scared of it’s volume (upon reading manuals) and decided to try sample system ’cause it, as it was said, already had implemented Login component. Unfortunately, it had not.
But of course I’ll try to do my best with single Login extension. Frankly speaking, I would be satisfied with very simple registration that even needs not any e-mail confirmation or something. I just need a mechanism which could allow people to register on the site and comment the articles, and I do not care either they are real people or not (hope some CAPTCHA will protect me from bots

). So I’ll try to use Login extension. I’m just scared of it’s potential complexity which is witnessed by the fact that even developers have some troubles with it