ok, i'll try to explain best as possible. The wordpress thing installs fine. (well, it says it does, and i've tried a few installs and i've always had the same problem)
When i try to create a new catagory, i put in all the information fine, but when i click on "add catagory" it seems to.... open up the site above the data input area of the catagory, and below the current existing catagories.
This... "random opening of the page" thing isn't limited to just the create new catagory bit though. It also happens when i try to create new pages / posts. The website will for some reason open itself inside the screen when i move from the title bit, to the actual content bit of creating a post / page. REALLY confusing.
I should also point out that, when this... thing appears, it throws the entire pages style out of whack. Not exactly sure how to explain it. Its probably something stupid like my webservers messed up permisisions on php files or something either way its annoying.