如何在单个域上创建magento中的不同商店?

I am really searching hard to make a two different stores in magento with different functionalities and i believe that this is possible in magento with 2 different magento installation on single domain.

I have went through some of the following tutorials:

Multiple magento stores on single domain

http://inchoo.net/magento/how-to-set-multiple-websites-with-multiple-store-views-in-magento/

I have carefully read this tutorials, but i think this tutorials work for only on one magento installation.

I wanted to know whether we can make two store, like

1.www.domain.com/store1 2.www.domain.com/store2

with different template design and different functionalities as well, so i think we will need 2 different installation.

Also my 1st website is already created and i want to share the categories and products ,but with different product prices on the 2nd store.

Are these things possible with magento and if yes then need a hint or little help ?

Also ,how can we change the nginx configuration for the same ?

Sounds like you need to create different website views and stores views. This can be done in the System > Manage Stores.

Then you need to in the system >Configuration part their is a drop down and you can select the website view and set the theme and everything for that.

Hope it helps!