How to delete aps, not used, on my iPhone 4 that is up-to-date on software?

I have iOS 6.0.1.In my apps tab on iTunes, I have the option to delete apps I have running on my iPhone and install apps that I do not have running on my phone; how the heck to I get rid of these stupid apps that I did not like and would like to get off my phone? (these are apps that do not show on my iPhone, only in iTunes). Also, I would like to install the update for my Starwalk app, but it states, "You must connect to a Wi-Fi network or use iTunes on your computer to download "Star Walk" TM - 5 Stars Astronomy Guide", but I can't find any option through iTunes to do so. How the heck can I download this new update through iTunes? I would assume it would be the same, route or avenue, as downloading any app's update through iTunes. Thanks

Added (1). Please do not tell me to HOLD DOWN ON THE AP AND PRESS THE X read my entire question please.

Hold down on the apps.

Hold down on apps and when they shake.click the ones you want to delete and click on the red button. And hit home button when your done.