Help Whats wrong

[zxsteve]

Hello,

Recently my son dropped my Arc on the floor and the screen broke. Looked for replacement screen but a little confused.
Not sure which part is actually broken, I have seen these two parts but which one do I need:-
Sony Ericsson Xperia Arc X12 touch screen/digitizer
or
Sony Ericsson Xperia Arc X12 LCD screen + digitizer
There is a crack in what appears to be the glass and I can feel the crack under my finger, I will try to attach photo tomorrow.

Cheers
zxsteve

 

[zxsteve]

Here is the damage
http://www.flickr.com/photos/zx_photo/6983263640/
Any ideas?

(Its flickr so it wont link for some reason)