a few Zen Cart modifications

Hi I have a Zen Cart site and need these things 1) Upgrade site to the latest Zen cart version (v1.3.7 to v1.3.8 - without messing up my customizations) 2)Add a search filter added to the site on the main page to search category brand style etc in separate drop downs it should not refresh only after making all selections and clicking on the search button. On the search results page, the search should add size color and features. 3)On the home page i want to break the front page in 2 the bottom part should stretch from left to right under the side boxes and move the text down to the whole width of the site the top part remain as is. ## 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