Widget Problem

Hi,

I am currently trying to re-design a theme which uses widgets. I want to create a new one but the problem I am having is, when I try to add to the php file it blanks out the whole wp-admin.

This is the new function/widget:

[code moderated - please use the pastebin for any code over the forum limit of 10 lines]

I then add the following into the functions.php file:

include (TEMPLATEPATH . '/widgets/whychooseipg-list.php');

Have I missed a step somewhere?