Yeah, Joy. You are just a goofball..not

I am not clear on your situation, but it's clear multiple diffuse liver mets are the hardest to deal with. Best if you have a lobe or small section without mets. In that case the rest of the liver to a surprising degree can be removed since the liver grows back. There is also an approach where one lobe is starved off. MD Anderson is trying a multistep surgical approach that gradually gets rid of bad liver sections while good liver grows back.
Looks like the various radiotherapy treatments have many similarities. I came across this chart which may have a bias toward cyberknife:
http://www.sdcyberknife.com/comparison.htm
Have you been evaluated for Yttrium 90(spheres) or directed liver therapy such as:
http://www.usclivercancer.org/region...motherapy.html
other links to peruse:
http://www2.mdanderson.org/depts/onc...ay/5-08-1.html
http://www2.mdanderson.org/depts/onc...ay/5-08-1.html
http://www.directtherapeutics.com/dti_015.htm
http://www.cancercenter.com/conventi...emotherapy.cfm
http://www.livercancertreatment.org/