simple. Turn on wifi, connect to whatever network you are going to use, and then download off of market the same way you normally would. As for where the apps go, they are installed and the icons are inserted into your app drawer for you automatically. The only exception to this , is if you decide to download a 3rd party app from a website, or something. To do this, you need to go to settings>applications> developement and check unknown sources. then when you download an app off of a site, it goes to your sd card in the form of an .apk file. you open it, and click install and you are good. the icon goes to your app draower.