Was bored.
Pretty easy to fix the crossdomain error. Just need to paste a policy file into the root directory of the webserver where my flash thing is. Unfortunately, I don't have access to the root directory, so I have kind of made a rough fix...
Flash's tight crossdomain security kicking in. I'll have a quick look into fixing it my end, otherwise I will repost.
Directly embedding it doesn't work then?
Works on the html page anyway, just submit a new news post.