Discount and Special Offer Magento Extension

Set up discounts and special offers for selected products. 1.Buy 1 Get 1 Free; 2.Multibuys (Buy x at y rate for e.g. Buy 3 at $30, Buy 2 Get 10% Off); 3.Half Price (Buy Product Get 50% off on Base Price); All Offers (Display all offered Products simultaneously also contain special priced product). Note: 1.Using this extension, discount on shipping amount /cost is not possible. 2.This Extension only works for Simple Products. 3.Please turn OFF compilation before installing extension and after installing extension, check functionality and then turn ON compilation.