Built my own theme, how to implement infinite scroll?

I’ve built my own theme, to be totally minimalist and doing only what *I* need, I’m building it for me.

I’m having no luck with Jetpack infinite scroll, so I was pleased to find this plugin.

It’s a two column content theme, but I can’t make Infinite Scroll load posts even just into one column.

Layout looks vaguely like:

<div id="wrap">
    <div id="container">
        <div id="column-right">
            //Loop for odd posts
        </div>
        <div id=column-left>
            <div id="popular">//some stuff</div>
            //Loop for even posts
        </div>
    </div>
</div>

Oh and navigation is in #nav, horizontal and pinned to top with scroll.

Perhaps that fixed position is messing with it somehow? I don’t see how though, that’s in jQuery.

Thanks in advance if anyone can help me out.