Well, no problem with you being noobs, no need to apologize about that... We're all noobs at a lot of things, and even sometimes boobs - I just learned this word in the novel I'm reading
In
this FAQ entry, I explain how to use
calibre2opds. It's quite easy if you use the default options, and even if you want to specify your personal options it gets easy after you've done it once.
Jane's explanation - not talking about the magazine here, but about da_jane

- is the basis of the FAQs ; but the "run the tool" part is only a part of it...
Please tell me if you need more details, or if you don't understand. I'll try to make the FAQ more clear, if possible.
All best,
David.