You seem to be asking two different questions
1) Is atheism a form of belief
2) Is atheism a religious position
Echoing others - good to see you back Gonners
To address Enki's points which seem to distil Gonner's post.
1. Typically atheism is a lack of belief, which is not the same as a belief. Not believing that god exists (a lack of belief) is subtly different to believing that god doesn't exist (which would potentially be a belief). I think most of us atheists here are firmly in the lack of belief category, in which case, no, atheism (as we see it) is not a belief.
2. Nope, definitely not. For something to be a religion there need to be some kind of customs, practice, ritual around the belief, which is aimed at cementing that belief. Again, looking at the atheists here, I simply do not see how that applies. While we might not believe in god we don't (or certainly I don't) engage in any kind of customs, practice, ritual to cement our lack of believe. And even where there may be customs, practice, rituals associated with an activity, that doesn't make it a religion. Plenty of people have customs, practice, ritual around going to the football, or playing golf etc etc, but they aren't considered religions (except in a colloquial sense). For something to be a religion not only must there be customs, practice, rituals but also this needs to be focussed on some form of deity or supernatural concept.