Our content server was down , I need to re build the image, I found that I need checksum information, before I rebuild the image (from admin guide)Where can I find ?  I have get the license already, I have also try to repair by windows server program...

I have two tandberg 8000 mxp w/ s/w ver 2.5 , could I connect with cisco sx 20 w/ ver 6.2,any upgrade can I proceed , is it possible to upgrade ?