Thanks for the replies.
I have read the RCP manual, and have tried various ways, but I still am a bit baffled by settings/SKU's.
I did manage to get 2 options for a product set up, but only one would add to cart, and didn't know which SKU to put where. On the Stacks/RapidCart Pro page the add to cart had the one price for one of the options.
Ideally, I would like a select drop down on the stacks/product/add to cart page, without the option select separate. I would like to know how to get that to work though! It would be great if I can get any option working.
I have one product and 2 options, so I need 2 sku's? Do I need to make another version of my product, and/or another stacks page with my product on?!!!!!!!!!!!!
And what about the ID's? not a clue if I need to include those. (I did try )