Go to system -> configuration and click on the option  “Wishlist” (sidebar menu)  under the main   category  “CUSTOMERS”  .  Then assign the value  “Yes” to the field “Enabled” under the tab General option

Go to system -> configuration and click on the option  “Email to a Friend” (sidebar menu)  under the main    category  “CATALOG”  .  Then fields under the tabs “Email templates” .

Go to system -> configuration and click on the option  “Catalog” (sidebar menu)  under the main category  “CATALOG”  .  Then set the field value “Allow Guests to Write Reviews”  to yes so that guest can post  reviews .

1) Go to system -> configuration and click on the option  “contacts” (sidebar menu)  under the main category “general”  and check the “Email sender ” value that  is selected from the drop down . Let it be “Custom Email 2”

2) Go to system -> configuration and click on the option  “Store Email addresses” (sidebar menu)  under the main category
“general  . Then fill fields under the tab “Custom Email 2”  and save the data .

Go to system -> configuration and click on the option  “Design” (sidebar menu)  under the main category “general” .Then edit the text of the “Copyright” field  and save the data.

Go to system -> configuration and click on the option  “Design” (sidebar menu)  under the main category “general” .Then upload an image to the field “Favicon Icon” under the HTML Head.

Go to system -> configuration and click on the option (sidebar menu) “Web” under the main category “general” .Then fill the fields(base url) under the “secure “ or “unsecure” options .

NOTE : If SSL is installed , use the tab secure else use “Unsecure” .

Go to system -> configuration and click on the option (sidebar menu) “Currency Setup” under the main category “general” .Then fill the fields under the currency options .

1) Assume that you have got a new magento theme . let it be “new-package” is the package name and
“new-theme ” is the theme name . 

app/design/frontend/new-package/new-theme
skin/frontend/new-package/new-theme

NOTE : FYI , By default “base” is the package name and “default” is the theme name as far as the design
part is concerned  .

In case of css and images , magento use files from the package “default” also .

2) Move the folders “app” and “skin” of the new theme to the root of your magento installation so that these
files will get  merged with the existing magento folders  “app” and “skin”.
make sure that the folders are moved .

3) Then after logged into the admin panel , go to system -> configuration and click on the option (sidebar
menu) “Design” under the main category “general”  .

Fill the fields and under the tabs “Package” and “Theme” and save the data .Have a look at the below
given  image  .

4) Clear the cache after saving the data , If cache is enabled .