Cutom Fields Causing Duplicates

[CreativeDesigns]

Please help me -
I am creating products with many custom fields added to it, so that the client can choose what variation they want of the product.
For some reason, it seems that this is causing duplicates in the front end of the site.

Why would this be happening? How can I remove the "duplicates" from showing on the site? I just want the main product to show. Here is a page showing you the duplicates:  http://creativedev2.co.za/MotorMerchandise/index.php/sales-aids/displays-promotional-signage?start=400