iPhone 4 cannot press home, charge, no sound coming out, no mic

hi

i just change my new screen but when i move to new screen i did a mistake some part is broken. here i post the attachment of the image

http://imageshack.us/photo/my-images/715...

now after that i still keep trying to fix it. my phone now can turn on. but i cannot press home, no sound coming out from iphone when i play the music and when i call also no voice, and last i also cannot charge.

what's component missing that i need to purchase? please let me know. and i purchase this phone from singapore. i dont know it's AT&T / Verizon type my iphone is Iphone 4.

please asssit

thanks and regards

agus halim