Hi rhadiem,

> this is asking for a license number in order to download,
> is this separate from the trial?

You're probably seeing the previous version of that page which your web browser has cached. Try pushing the Reload button there, or use F5 or Ctrl+F5 which usually will refresh the page by making your browser fetch the latest version of it.

Also here is a direct link just to the download itself:
http://moi3d.com/download/osx/MoI v2.5 beta Jan-31-2012.app.zip

- Michael