Hello Ajeh,
I have read your post above and followed it all step by step by step.
However, I am still getting no add to cart button or drop down menu in the actual gift certificate product listing.
Initially, I tried adding one product per gift voucher value, but this didn't work, so I am now trying to have just one gift voucher with different values (£5 - £250) selection by dropdown for the value, so:
I made a Product with a products model starting with the word GIFT and have set the Product as a "Virtual YES" and price 0.00. I then marked it as Priced by Attributes.
I have an option name "VALUE" with a Option Type Dropdown .... the option values I've then set to £5.00 - £250.00 in reasonable increments.
Then I added the Attributes at different amounts to the Product and set set a DEFAULT Attribute
I did not make the mistake of setting the Option Name with an Option Type of READ ONLY.
STILL, IT WILL NOT SHOW THE ADD TO CART OR DROP DOWN MENU IN THE PRODUCT VIEW
I've been on this for hours now and it's really starting to get annoying. Any help would be greatly appreciated.... Here are a couple of screenshots to show my setup:


Please, someone tell me what's wrong so I can move on with my life :-0