Build an Online Store

I have a woocommerce theme and online ecommerce store. The issues I am having are the following: - when adding a new product image the media gallery is not displaying and I have to upload a new image every time. When you go to the media library everything pulls up fine. - I bought the woocommerce plugin that works with my merchant account for online purchases. I cannot get the checkout page configured to accept debit/credit cards. If you add a product and try to checkout it does not load debit/credit card side screen function - Need to link my categories with my menu buttons. For instance I have a menu button "camouflage" under parent menu button "hydrographic film" under main parent button "HYDROGRAPHICS". If you can show me the code to link the category with the corresponding page I can go in and do the rest. Please let me know if you are able to do these fixes and how much. I have been working with woocommerce support team but they take forever to respond. Need to be fixed asap! Let me know what you think. Thanks!