ClickandBuy Module for Zencart

This project has been post by me before, I have a working version of this mod made for us but is starting to give me a lot of bugs and is imposible for me to get in touch with the provider who made this mod for us. I really need this to be donde asap!. I will write the specifications fo this project again: "We need someone experienced with ZenCart and able to buildt a clickandbuy pay module for this platform. If you are an expert on Zencart you should know that is based on OScommerce, oscommece does have a clickandbuy module but is not compatible with zencart as I have already tried to install it. You can download a clean verstion of zentcart right here [login to view URL] and I am also attaching oscommerce clickandbuy module so you can take a look and work over it. Please be sure to know what this project is all about. You have to be really experienced with Zencart in order to make this module work as it does for oscommerce. Thanks in advance." In this case I am not attaching the clickandbuy module for oscommerce but this time I am attaching the module compatible with zencart!. ******************************************************************** VERY IMPORTANT: Take note of this, there is a file in the module called [login to view URL] the error I am getting is the one on line 75 in case that helps you. Also after doing some tests I figured out that this error is only happening when I applied a discount cupon to the other so the problem might also be there so if you need that file ask me for it. ******************************************************************** Clickandbuy when the users makes an pruchase through they interface they check that everything is ok through this file [login to view URL] so soemthing is going wrong with it. Please look into it. I need the provider to be able to be online on skype, msn or an instant messenger to talk about it while is being done. As I said I need this to be done asap. Thanks a lot.