Easy just download your entire website through FTP, then log into phpmyadmin and download your database. Then just upload it all to a new host and make sure your sql ip, log in, and password are correct. The scripts and php shouldn't be a problem if your using a decent ecommerce software. You will just reinstall your ECommerse software and then load your database. Most if not all your setting will be in your database. Your previous host should have no problems at all, if anything they will help you. As for if your site is propriotary I don't know. Whats your url and I'll look at it.
by Jake Hertz
by Jake Hertz
by Aaron Carman
by Jake Hertz