I've been trying to debug a cart in which every order placed is seemingly sent the wrong weight upon actually ordering.

Say an item is 3 lbs.. throughout the shopping cart and ordering process it will give a quote for 3 lbs.. but upon actually ordering the invoice is made out to 0.10 lbs for some reason.

I'm pretty sure the problem lies in the xcheckout or ajax checkout module this cart has installed. I'm trying to go through the logic but can't figure out where in Zen Cart the order actually gets pushed through. I had thought maybe checkout_success/header_php.php but didn't see anything jump out.

So I was just looking for advice for what file my bug might be in. Anything to find this needle in the haystack.

Thanks,
Anthony