Problem with shortcode position

Hello.
I’ve some problems with the shortcode.
I put the shortcode of the plugin “WP-ECommerce-Produt-Showroom” below my text on a page.

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But the plugin is shown on the top of the page.
Here is the code from the page:

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So you see, that the code is on the top of this page.
The css-class is really simple:

.showrpdiv{
	float: left;
	height: 80px;
}
.showrpdiv ul a{
	color:red;
}
.showrpdiv li{
	list-style: none;
}

What can I do?

Thans for your help!