Quotes Function in OsCommerce

Please see the Quotes Function that is part of the classes/[login to view URL] module in OsCommerce: (see attachment) Right now, I BELIEVE (but I'm not sure) that we are adding 20% to the total shipping charges if the categoryselected = "consumer". See the red code. Could you please verify that this is how it is working. Then, we need to change it to do this: If categoryselected = "consumer" and the total costs of all the shipping items are greater than $25 we need to give them FREE shipping. How would you modify this function do that that? Let me know ASAP. We need this immediately. Thanks!! ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform PHP and Oscommerce