Extra 'input' box needed on product info input page

Hi, I'm a Zencart novice and wondered if any gurus out there could help me with the following 3 questions...

I'm trying to find out if there is a way to add an additional input box on the new products page where I fill in the information of a new product (I can't add the text into product description box as I am hoping to be able to add this information onto the delivery note and invoice - This leads me neatly onto my next 2 questions...)

I then need to find a way to pull the data entered into this box and add it to both the delivery note and invoice to the right of 'Model' under a new heading 'Conformity'.

Finally, I need to add titles to the Delivery note and Invoice.

Any assistance would be much appreciated.:smile: