Creating a stylish page curl with CSS is pretty easy, you just need to create the curl and apply it as a background-image, position it properly and off you go.
This is one example of how you can get creative with WSS v3 sites using only CSS.
Here’s the code you’ll need to add to your style sheet. I recommend using the AlternateCSSUrl method if you are lucky enough to have a MOSS installation.
/* Page Curl */
/* padding should be a few pixels more than the pagecurl image height */
Upload your pagecurl.gif to the images folder in the 12 hive: (Download a quick sample pagecurl.gif)
C:\Program Files\Common Files\Microsoft Shared\web server extensions\12\TEMPLATE\IMAGES
You’ll need to modify the image background color to suit that of your site so I’ve included a large’ish version of the page curl in .PSD format for those that wish to modify it. Download the pagecurl.PSD file