Can you download all material on a hotmaill account in one go onto a c.d and how please.

Hotmail is stored on the web, not on your hard drive. So, basically, no. BUT...
If you were to clear your cache... restart your computer, and fill your cache with all your Hotmail stuff, then I guess it can be done. Just transfer the cache to CD.
Why you want to is beyond me, as it is stored indefinitely in cyberspace.