Looks good Lionel, I was not too sure what it was at first or even if it would work with out Cartmods easy checkout mod.
So to help everyone, you can see a picture of it below, and it works on 4.0.18 and you dont need the cartmods easy checkout mod.
It looks nice, well done.
Dont forget the image for shopcart/skin1/images/cart_full_r.gif - Right click this image and save it.
http://www.shisha.co.uk/shopcart/skin1/images/cart_full_r.gif
Also the above code goes into /shopcart/skin1/customer/main/fastlane.tpl
http://www.shisha.co.uk/images/shopcartcheckout.jpg