In answer to some questions, here are some important things to get started on Categorian:
* Go to your Setup and drag each of those bookmarklets to your browers's toolbar.
Once you have them there, you effectively have a' home' tab as well as tabs to do a blog post, a photoblog post, send a site etc.
Photoblogging is a little different than what you're used to. You just click on the image ( wait a little while ) and the code then appears in a text box for you.
* Download an HTML editor like Xinha to format your text, add images etc.
* Remember that for external players like YouTube and music players, you need an embed code. Look around the original site for it (it's not always immediately obvious; look for 'share') or right click on the player and it should appear. Copy it and paste it into a blog box.
GOOD NEWS !
You can center the youtube player and it plays on your page, AND IT DOESN'T GET HIJACKED THROUGH BLOODY STUMBLEUPON'S CRUDDY PLAYER!
More good news as I discover it :-D