EMERGENCY Need shop cart NOW

create shop cart for website by 0600 hours US-PST (GMT -8)this Saturday Dec 22nd. Will be for 10 items and require discounts for multiple purchase. Have SSL cert. Current programmer in over head. Has PHP script that is not working! Need to fix or have your own module already working to install. Work with my asst who does the html for the site. Must GUARANTEE completion by date & time. ## Deliverables 1) Complete and fully-functional shopping cart with discount capabilities for multiple items order. 2) Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment 3) Needs to be fully functional with our gateway ([login to view URL]) 4) Needs to handle up to 10 items initially with multiple item discount (ex: buy 4 items get 2 FREE, buy 8 get 4 FREE and continues on) 5) Needs to calculate shipping for US and Canada for UPS and USPS initially. 6) Needs to calculate for sales tax in 2 states. 7) Needs to send Db info to fulfillment warehouse in the format required by them. 8) Needs to have admin panel where we can retrieve all the customer info. 9) Needs to be tested and fully functional by 0600 hours US-PST (GMT -8) this Saturday Dec 22nd. ## Platform Linux (Vserver at [login to view URL]) needs to be read by all 6.0+ versions of Internet Explorer and 2.0+ versions of Firefox