forgot to add the suggested change needed:

i figured it out it was really simple actually
this is the only file you have to edit:
/home/rickie/public_html/includes/functions/functions_general.php
Line #1146 : case ($button_check->fields['products_quantity'] <= 5 and SHOW_PRODUCTS_SOLD_OUT_IMAGE == '1')

It originally said case ($button_check->fields['products_quantity'] <= 0 and SHOW_PRODUCTS_SOLD_OUT_IMAGE == '1')

I just changed it to "<=5" and then i showed a sold out button when the product quantity is <=5