It is by no means perfect. The margins are a little screwy, the first date div is smashed up against the left side due to some kind of box-model freakout I am sure, but for the moment, the CSS is at least workable in IE.
God, what a piece of shit.
So I fixed my Float/Clear problem by positioning the right side absolutely, and giving the content area a margin equal to the right side. This is a variation on the canonical(sp?) Glish 3 Column Holy Grail. The lesson? Don't do anything complex with css and IE. Stick to tables man. Until microsoft fixes their borken-browser, it is either pain and hacks, or tables.
Update: It just has to do with the single "info" div on the Original IE Fixins post. As soon as I get some time... (that is, next week. 8P) I will fight with IE some more, and fix0r it up. Interesting to note however, that there is Another Post that has a right floating info div, that does not interfere the same way..