Database transfer from OScommerce to EC-shop ecommerce

I have sucessfully installed a new e-commerce software template. However, I do not know how to move the current OSCommerce database to this new e-commerce named "EC-shop" software. What I need is somebody that familiar with the software can help me to transfer the current database(SQL-size less than 5mb) and probably some configuration that make the system works. Right now I have installed paypal payment but the check-out system stuck at the shipping page because no shipping method is found... even though I thought I have installed few types of shipping methods that come as "1-click" install together with the software. Please refer attached pictures for more details: Things need to be done: 1) Check and make paypal payment method function properly, this inlcuded to check & setup the shipping methods that comes with the package. 2) Database transfer included products listing, customers information, orders,etc... if possible. 3) Other setup & configuration that may need to adjust to make the system work. 4) Mass-mailing setup & configuration. Successfull service provider will be chosen to continue my next small-project as well.