I hope this helps. I have no idea what your level is with computers, so please excuse me.
At the top you'll see the first post by 'Styles Database Manager'
You'll see a file something.zip That 'zip' file is what you download. Click on it (left mouse button) and a window should pop-up almost immediately, wait 5 secs and save it to your computer.
Then you'll have to 'unzip' the file with a program like WinZip, or something. I don't know, but I think a program like this is included with Windows XP if you're using that.
Then make sure you read everything you can on how to install them on the forum. What I did was I had a look around and got familiar with the Administration Panel (a small little link at the bottom of the front page of the forum, you'll only see it if you sign in first)
If you have any problems you can Private Message me (the 'PM' button)