You would probably be better asking this in the HTML/CSS forum: http://www.daniweb.com/forums/forum143.html

You will ideally need a Database to store the information in, there are a number of calendar and diary scripts available if you search Google.

First it looks like you just lifted the javascript function from the website you quoted.

You have not defined a function called trailOn() or hidetrail().

There alot of scripts online you can...

The image posted was done in Word, that's just a representation of what they want it to look like, when I say 3d effects, it more that alternating rows are inset/outset.

I am having some problems with HTML and CSS, firstly with links in a li element, I have it set to display: block so that the it will highlight when the cursor is placed within the li area, but this...

This will require some server-side scripting to achieve what you are looking for, PHP is a popular choice for similar solutions.

Check what your webserver can support and search the internet,...