CHANGE SALEMAKER and ITEM PAGE / CHECKOUT FUNCTIONs

I AM LISTING SIMILAR PROJECT TO ALLOW ONLY BIDDERS WHO ARE ARE MAKING BID WITH "EXPERT GUARANTY". IF YOU CANNOT PROVIDE SUCH GUARANTY, BUT FULLY AWARE THAT YOU CAN ACCOMPLISH THE FEATURES LISTED BELOW, PLEASE BID ON MY ANOTHER PROJECT. I MIGHT CHOOSE YOU WITHOUT GUARANTY IF YOU WILL DEMONSTRATE THAT YOU ARE FAMILIAR WITH THE FEATURES THAT NEED TO BE CHANGED. - - - - - - - - - - - - - - - Current Status: Worker who made substantial progress on this previously-listed project, is missing during 2 weeks, I cannot wait any more. I would like you to finish this work. Currently Specials & SaleMaker allow to apply the special discount to the items and categories. There are a few problems with the limitations. SaleMaker allows to apply discount to categories and Specials to products. Previous Worker added Category Selection to the Sales Maker screen. Discounted price shown in item pages and other screens. Please look here for more details and read some additional explanations in red: [login to view URL] So, again ... multiple discounts (discount group) for selected items or category should be implemented in SalesMaker. This task is partially done, but then "Worker" disappeared for almost 2 weeks. Front User selects 2 radio-buttons from 2 r-button groups (r-buttons will represent the sales discounts) and submits the transaction through checkout. Price recalculated after r-buttons clicked should be shown in text-box. This one should work like this: [login to view URL] [login to view URL]