Nyjella

I am trying to learn how to modify an existing shirt template for Kaneva.com devving and cannot find a tutorial to help me anywhere, not even in Kaneva itself, just not there! Is there anyone out there who can point me in the right direction? I need to know how to modify necklines and sleeve length and such. I am seriously wanting to learn, but need over-the-shoulder guideance...is there a simple tutorial that can help me learn?