Move WordPress from “wp” to “root” ???

Hello –

I have just installed WordPress on my site (www.serieland.dk) via an automated “one-click”-install provided by my webhost. And that works just fine … except for one thing: I can’t install it in the root, but only in a sub-folder, which I then chose to call “wp” (www.serieland.dk/wp). BUT I really want my blog to show up when I enter my site, so HOW do I move WordPress from the folder it was installed in (“wp”), to the “root”?

I hope someone can help me, because I’m going out of my mind here! 😉