Since yesterday a site I work on developed a strange problem.

Ive added a couple of pics, hopefully to show what I mean.



In the image above the arrow points to a submit button for the shout box, But when a shout is attempted, it is directed to the location in the bottom left corner. I do know the location it should direct to as index.php.

This is not just a shout problem, as I wouldn't have bothered you with that, it also affects the posts as you can see in the image below. Again it directs to You Account...


Can anyone help please.... Its a kids football site whi give them important info, and I need it back up as soon as possible because our season has started. The website address is Tommy Mcs and im on 8.0.
It has been fine for months. The only thing that cahanged over the last couple of days is I added a video block, (but was ok) and yesterday the site went down for a while, as I ran out of bandwidth.