Lets first discuss the layout, we can always delete these posts afterward.
Making new posts is no problem since it gets quite messy when editing a large post. You do have a point with the messy look overall. Perhaps we need start a wiki(sp?), a website based "encyclopedia". I have no idea wether you have to buy space or how long it is hosted (would be a shame if it gets removed).

Using Flash would make it too time-consuming to edit. We could ask Tosa for a subdomain and make a website. But that might be too ambitious since then you almost obliged to finish it.