Attached is a screen shot of what I get after entering Product number 201, quantity 22 and size 275 gallons.
I tried five different products with different quantities and sizes. Every result has errors in size and quantity - blank size and a quantity of 1. I don't see the quantity or size in the dump.
Also, the product results page doesn't redirect to the Cart any more, though the wizard has the correct value.
I've looked at both the Add to Cart on the product detail page and the eCart object, but they both seem ok.
Are you looking at the page referenced in an earlier post, because I get wrong values in both size and quantity in every instance.
Attached are the product detail, request for quote and Object files.