Shipping Option

Hi,
I have a problem in my shop online.
I want to put your Shipping module, because it’s perfect for me but I can’t.
I tried your 2 Plugins

https://www.ads-software.com/support/plugin/wp-e-commerce-fixed-rate-shipping and
https://www.ads-software.com/support/plugin/wp-e-commerce-fixed-shipping-rates

but I can’t see my “Fixed rate” in “my Chekout” when I want to order.
I went my “Store Settings” and I had all my different option” Shipping option” and “Shipping price” but after I can’t see my option.
Do you know why I can’t see in my Chekout ?
I don’t know where is the problem ?

Thanks a million for your answers.

https://carraigflowers.ie/

https://www.ads-software.com/plugins/wp-e-commerce-fixed-shipping-rates/