automate data feed

i'm joomla websites builder and now i build virtuemart store with about 12,000 products. my client dropship supplier have several .csv files that generated in real-time upon request and reflect current inventory status. database is synched six time a day with their warehouses to ensure the feeds and inventory status are always accurate. The data feed is a raw feed of information and is not easy to work with. Only very experienced data programmers should be attempting to use this. i need you to build one custom csv file from this several .csv files and upload it daily with the latest data from my client dropship supplier. i have registered scvi improved extension for my client domain and you can use it if you want. There is a product category association file in the data feed downloads. The products are already categorized into multiple categories. but i need to add sub categories because there is no sub categories in their csv file. The pictures are all served from the same server. i need you to force them into a different size . they do not allow anyone to download a copy of the images. They are copyrighted and not authorized to download. You are however allow to serve the images from their image server using the URLs provided in the feed. i need 100% automated inventory management. please see [login to view URL] payments - 20% after 1 month , 40% after 2 month, 40% after 3 month.