Yep, I see what you mean. I can actually get mine to appear just like that, but once I type in my password, the page merely refreshes, which I find highly annoying. I took it down for the night (it's still saved as a draft), because I just couldn't figure out what was wrong with it, and it's late so my patience isn't too great (my site's at http://layla.nu but as I said, I took down the password-protected entry since it wasn't working).
In all honesty, a friend installed WordPress for me, because she said Greymatter had some security issues. I really like it, but I really not so wonderful when it comes to tweeking things (like how the right "table" ends up in the wrong place on all the comments pages, heh).
I took a quick look at your site. I really love the design colors (the black with shades of blues). Very lovely.