I’ve always had a problem with getting tables to center properly while creating valid code. The Site Wizard has come to the rescue! Here he shares an article on how to do it, with a workaround for Internet Explorer:

How To Centre a Table - from The Site Wizard

The title refers to Nvu and Komposer (two popular web page editing tools) but you should be able to follow along no matter what editor you’re using.

Ah, Flash… the bane of a designer's existence. So pretty, yet so overused and underutilized for anything with a purpose other than eye candy. Anyways, it's important to place the files in a page properly. The old method of "embedding" just doesn't make for valid HTML. So I went looking for how to do such a thing, and found my answer here:

http://www.joostdevalk.nl/code/valid-flash-embedding.html

He provides a clean, simple way to place Flash on a page and still make the validator happy. Yay!