Question [q] keyboard help? Stock keyboard on custom rom?

I am wanting to run this keyboard (Attached) on my phone, i dont have it but could i extract it from the stock rom and install it to my phone running custom rom? if so how would i do it, when i have tried any others it just says app not installed, got a feeling it will do the same if i try with this one?

PLEASE PLEASE HELP, NEED HELP!

Thanks
Attached Images
File Type: jpg 10589670_581342715303121_992648091_n.jpg - [Click for QR Code] (5.5 KB, 10 views)