Magento - Bulk Category Creation / Update (Import / Export Profile)

You can either fix a profile I previously paid a lot for (bulk category import / export). Or you can create a new custom script / profile which will achieve the same result. I have about 2,600 categories in my magento based store currently. I have about 4,600 products I will be importing and I need to create about 2,000 new categories for these products to be assigned to. The categories created will generate parent and child sub categories. Please view my website and see how the categories have been designed. [login to view URL] The script / profile you create must be able to correctly import / export in csv file format. It must be able to update previously created categories easily. It would be a bonus if I was also able to bulk delete categories, bulk assign products to these categories etc. I also had a problem earlier where I could only assign max 500-1000 products per category from within magento admin backend (manage categories). I will create 1 x 100% milestone payment. I will only release upon project completion with all requirements met. Happy bidding!!