Os Commerce Scipt Customizing and Population

I have an oscommerce script on my website. I just had the script intalled. I dont have the knowledge or time to customize and populate the site. I have the products I want to sell in an excel file and 1--I need them put on my website. 2--Also I need the payment option to be modified so the customer , after adding items to the shopping cart will have to pay by wire transfer. The email sent from my website will need to have the wire transfer details inside. 3--The website is set up to show 4 languages(english, dutch, spanish , and japanese) HOWEVER I only need it to show english and japanese so the customization will need to accomidate both. 4--Also I will need a small banner with my company name fixed at the top. If you have done work like this before please send a pm with examples of your work. Thank you