The fix hacked wordpress Codex has an outline of what permissions are acceptable. File and directory permissions can be changed either via an FTP client or within the page from the hosting company.
Hackers do not have the capability to come to a WordPress blog once you got all these lined up for your security. You can have a secure WordPress account especially that one which provides you big bucks from affiliate marketing.
It's a WordPress plugin. They're drop dead easy to set up, have all the functions browse around this site you need for a task like this, and are relatively cheap, especially when compared to having to employ someone to have this done for you.
Make a note of your new password! I suggest the paid or free version of the software that is protected *Roboform* hop over to here to remember your passwords.
Of course you can set up more plugins to make your shop more user friendly like share buttons or automated plugin. That's all. Your shop is up and running!