I wasn't really thinking straight before. This javascript should only need to be placed inside the template files, not any pixelpost core files.
I've quickly just gone and placed it inside the simple template, and get seimi-working functionality in IE, but poor results in FF. My coding ability is not great, so any help on this is greatly appreciated.
I'm just looking for a way to incorporate it into a basic theme. It seems right now that the extra text on the screen that was not present in my image only tests messes with the javascript calaculations on size.
Currently active at
http://www.photos.thisyear.ca.
Works pretty good in IE, not so well in FF.