Sounds like a bad design. You should probably store the product descriptions in a seperate table from the image links. SPlit those out something like this
products (
id int auto_increment
product_id varchar(50) not null
product_description text
primary_key(id)
)
product_images (
id int not null
image not null
)
So the id being an auto-incremented, unique number or each product. You store the part number or whatever in the products table with the description. Then for each image you want to show, put the id generated from the products table with the image in the product_images table. So if you have 5 images, you'd put 5 entries in the images table.
At least, that's how I'd do it....