how to put a big image/pic like this on my facebook fan page?

[Logical Reasoning]

What your looking at is called an iframe, facebook allows you to add custom tabs that aggregate anything you want from a different server - even your own web server! This can simply be setup by using a facebook app.

Here's a good tutorial explaining the process:
http://www.likerecord.com/tutorial/fanpage-custom-tabs

This article explains ways to customize your fanpage:
http://www.likerecord.com/tutorial/custo...ebook-page

Hope this helps and good luck!
Cheers!

[Soumitra]

It is very very easy to create such.

Create that with Fast Fan Pages, the coolest way to create in minutes.

Creating good pages is good , but what for getting likes ?

To learn this both step by step with screenshots & videos , just see this post:-

http://www.internetconsultantindia.com/?p=998