What do I need to fix my iPhone?

Hey everyone. A couple of months ago i was sitting with my friends on a bench in the park. I dropped the iphone on the ground and it hit the grass. There were no rocks or anything so i thought i was fine. I turned it on and the screen was not damaged. It simply did not respond to touch. There are no blank pixels or anything. I've seen on this website that there is the front panel replacement kit. I don't know what to buy to fix my iphone. The warranty is over. I also want to buy the back case. The iphone is the Iphone 3g. What parts do i need to fix it? I know how to take it apart and how to replace parts, i just don't know what parts to buy. I've also tried the reset which you hold the home button and the lock button thing. It still doesn't work. Please help!

I just noticed that there is a crack on the bottom of my iphone, the crack leads to were you charge it. Could this mean i broke a different part? do i need to buy a new iphone or can it be fixed?

Thanks in advance

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Also

What i need to buy is the front panel ki that my iphone responds to touch correct? I dont need to buy the LCD because the LCD on my iphone is not damaged. Im about the buy the front panel kit from IfixIt, is this what i need?

Oh and i live in Madrid so the phone is European, will the front panel kit work?

I uploaded two photos from the front and back of the iphone.

Front:

http://tinypic.com/r/103crde/7

Back:

http://tinypic.com/r/2lx9kk6/7