Hi, Guys, I have just bought a DM600C, I am a noive, I been reading the forums but I really dont know what to do?

Which Image do you put on the DM600C and where can I get it from?

Can I not use my old image from my DM500C?

I havent got a Hard Disk for it yet, do I need to flash it once the Hard Disk is in
it or can I just put the HD in after I have flashed it?

Will the box auto update like my old DM500C.

Please HELP