1) In the login/registration page it still says " By creating an account at nopCommerce you will be able to shop faster, be up to date on an orders status, and keep track of the orders you have previously made. "
I guess then need to be changed by your store name
Manufacturer link is white so you can't see the name
I think the blue at checkout is a little strong, needs to be a little bit duller color, perhaps something more in line with the website colors.
In New Products link, your text is larger than the column
Payment Info tab still says you can edit it in the admin panel
Width works fin for me but you really should have your site designed to fit a 1024 width at most since 70% of computer users are still using computer at or below that width.