Quick job...already started but need final code work

This should be a quick code implementation for somebody. I have a photography website that used to list all the products for each picture in a long table form where they each could be added to the shopping cart. I've been working on a php script to have all of the products show up within a drop down list then when selected they could press the add to cart button. I have the drop down created now to show the product name and price, but I am unable to pass that price to the shopping cart. It looks like you would have to find the correct code in three existing pages to get this to work properly. It should be very simple for someone who knows a little more php. I'm accepting bids on this. Let me know.

10$