Opencart Shipping Module problems - repost

I need help fixing 2 shipping modules for our live 1.4.9.4 opencart store at [login to view URL] 1. The Fastway Couriers API has recently changed, causing our opencart shipping module to not work properly anymore. Info on the API here: [login to view URL] We need to update the opencart module as soon as possible so it functions properly again. 2. Our e-go shipping module not working correctly very well either (made by Kedgegroup - they are very slow or unwilling to support their product). It works quite well if there are only one or 2 items but returns very expensive freight quotes as soon as there are multiple items - even small items. I'm guessing the reason might be that the API requires weight AND dimensions and the shopping cart only provides a weight. There must be a default dimension in the module that when multiplied causes large cubic freight volumes. There might be a simple fix where the default box dimensions for a given weight can be made smaller. Preferably this should become a setting for the module so that we can tweak this dimension in the settings.