CRE 6.15 adding some mods

I'd like to have a customized checkout for CRE Loaded 6.15 and have the latest patches installed. fast easy checkout or simmular. [login to view URL],3469 Email Subject with Order Number and Status [login to view URL],2947 fancier invoice & packingslip [login to view URL],2861 No buy button if quantity = 0 [login to view URL],3703 MS2 Skype_US v1.0 - F. SION <<< Should be able to turn this off by the infoboxes layout which is included in CRE. [login to view URL],3364 The checkout should also be logged before checkout to creditcard processor. (worldpay) instead of the oscid it should log the order number. (i've seen this contribution but can't find it that fast. And an aditional invoice to be printed in the admin, with only article numbers and no discription of the goods. an extra custom packingslip without the product information sothat it can be used for shippinglabel.