[For 1.6] MyShowcase System 2.5.2

[Disciple of Nagash]

Hi.

I am having trouble getting this plugin to work.

Here is what I have do so far

-Upload ok, activation ok.
-Created a fieldset ( really don't understand the HTML / Field Type options)
-Created a showcase using the main showcase file, created a image folder etc.
-Changed the settings of the showcase
-Created Table
-Enabled.

All that seemed to go ok.

Navigated to mysite/showcase.php and something has obviously gone wrong.

Normally my sites header looks like this:

www.vampirecounts.net (this is my livesite, this plugin is getting tested on a testsite, link can be provided via PM if necessary).

However when I navigate to the live site all images / backgrounds etc where stripped out. It did say the showcase, view, comment, etc, but on a while plain background.

EDIT: The button to create a new showcase is missing, though I can click on the link. However it doesn't load, it states the link is broken: Oops! This link appears to be broken.

Please can you help? I need to know how to ensure this plugin works with my theme.
Also if you can give more info on the HTML and Field Type. For example I want to create a drop down list that users can only select certain options in one field, can this be done?

Thank you.