This site has changed hosts. This is the old host. You're reaching this host because your DNS has not been updated. Don't worry, it'll update itself automatically, probably in less than 24 hours. Until then, you can use the old host all you like, just don't bother posting comments or styles, because they won't make it to the new host. You'll know you're on the new host when you no longer see this ugly message :)
The author has marked this style as obsoleted by Tab: Width fixed for normal and selected tabs.
I already have one like this over at http://userstyles.org/style/show/393