currency-price-discount features

Job Description We need to have implemented on our existing website a currency-price-discount feature. It must be integrated into an existing admin panel of a CMS which can be viewed at : [login to view URL] The task is as follows: Currency: create a default currency which all other currency relate in values. It must include: currency symbol, name and percentage of the value against the default currency which must be set in the setting section. Price: basic price (value) of the product (there need only be one price range as each product is equal) Discount: simple discount such as if purchased more than 'X' products get "Y'( in percentage) discount per 'X'. (i.e. 5 to 10 products = 15% discount for each product ect.) the script must be coded in PHP and the relevat tables in the DB are added into and existing MySQL database. The modification must be fully compatible in style, look and function with the existing CMS admin. Server is: LAMP payment method: escrow timeframe: A.S.A.P Full FTP and DB access provided but NO CP access given.