I don't actually know whether this is a good place to put this, but I couldn't find any where else.

For ages I have been trying to make a few things for my website.
The following are the things I have been trying to do:

1. Make a membership aspect of my site, eg. Login, Sign Up
2. create rollover buttons like the ones that they have here, especially the TS extra one.

Can anybody please tell me how to do this?

For Login/signup etc, get this book:
HTML for the World Wide Web, 5th edition, by Elizabeth Castro
with XHTML and CSS
Peachpit Press
ISBN 0-321-13007-3
RRP £16.99, at Amazon-UK for about £12.-
Make sure to get the 5th Edition, NOT the Student Edition!

Here's a free program to make those buttons:
http://www.freedownloadscenter.com/Web_Authoring/HTML_Editors__A-G_/Free_Web_Buttons.html