Add product and change pricing for Zen Cart site

I have a Zen Cart version 1.3.8a site at 7daysagreek.com. Currently the order process is like this: 1) Click on Design Room 2) Select a product (e.g. Bella V-neck) 3) Choose size and color and click CONTINUE 4) Select up to three letters and click CONTINUE 5) Add a foreground color or pattern, and a background (optional) and click CONTINUE 6) Select Embroidery (optional) and click CONTINUE or SKIP EMBROIDERY 6) b) If you selected an embroidery, add the LINE 1 and LINE 2 text 7) Check out I want to do two things. 1) First the easy thing - I want to change the embroidery pricing from $5 to $7.50 for line 1 and from $2.50 to $5 for line two. I would like this done in a day. 2) They are adding a new product - flag designs - to the foreground selections. See the Flag Letters on the home page. THere are currently four possible flag designs. When the customer selects one of the flag designs: 1) They do not select any other foreground or background design. 2) $5 is added to the price The customer would prefer to have the flags as an added tab (FOERGROUND SOLID - FOREGROUND PATTERN - BACKGROUND - FLAGS) Then if they select FLAGS, $5 is added to the price. I am including the files for the custom product design process.