Is there scripts that can run of my designs? or do they have to have their own designs?
Also is there such scripts that can register users and allow them to shop and buy my products using their accounts?
are there such scripts or do they need to be manually made? and how much would they cost?
thank you :)

I use OsCommerce for shopping purposes. It is complete with every feature.
Peace,

OsCommerce is a good free script. However, if you are willing to pay for a well-built shop script, I'd recommend SunShop. It is 98% customisable (2% is the licensing features), and the templates are full HTML so very easy to modify.

So how would I get it to fit my design, whether it is OsCommerce or SunShop?

Xcart is pretty customizable too. It has a webmaster mode where you can easily find which template files you need to edit. It is however, not free.

Most major scripts support "templates", so it's usually quite easy to edit the design. :)
-mike

last question, is there a specific program that will pay me a percentage and my partner another percentage?

Is there scripts that can run of my designs? or do they have to have their own designs?
There actually exist some scripts that allow adding themselves to your live site (instead of forcing you to make your site around them). They usually provide a set of functions (PHP tags) that add some elements to your pages. Avactis (http://avactis.com/) for example has PHP functions that you can insert in your pages and show navigation bar, product costs, shopping cart contents etc... ShopSite (http://shopsite.com/) is a bit different, you insert special text in the pages like [-- some element --] and it turns it into real elements. So you can choose what's most comfortable for you.