port nopCommerce to MySQL

nopCommerce is an open-source webstore program written with MVC 4.5 ASP.NET platform (the program can be compiled with VS 2012 Web Express) that uses SQL Server for a datastore. We want to use this program but we cannot use SQL Server, as the rest of our website uses MySQL. The task involves three parts: 1. Port the standard program (download from [login to view URL]) to use MySql. There are some third party add-ons that purport to migrate the database, but I cannot vouch for them. I have migrated the tables using MySQL Workbench but not the stored procedures. 2. Help me figure out why my standard installation, using SQL EXpress gives an Access Denied message when I attempt to enter the back office admin console. To do this you will have to log on to my laptop (using Team Viewer) and troubleshoot the program remotely. 3. We think we will need to use a Payment plug in. Probably PayPal. We need to know if it is possible to run plugins with the ported program (the one that runs MYSQL.