Xbox live was on the original Xbox, meaning that there are several games which you can play online. Halo was the most popular game on the xbox. You can still play these games but noone will be playing them as the Xbox 360 has more and latest released games.
Also, you cannot play Xbox 360 on the original Xbox, FACT!
No they do not, but you can play certain Xbox original games on Xbox 360
No, but some original Xbox games work for Xbox 360.
Yes!
Only normal Xbox games can be played on the original Xbox, original Xbox games can work on the Xbox 360 thought...
No, original Xbox controllers do not work with the Xbox 360, so any games you download from Xbox Live Marketplace will use the Xbox 360 controller.
Original xbox games work on only elite 360 or higher, not arcade. If they work on your 360 then they should have live as well. I haven't tried yet though, I still have a silver membership.
Some of them do.
None
You don't only some original xboxs games work on xbox 360, usually the last ones out for the original xbox.
If you mean play xbox 360 games on the original xbox then no. If you mean play ORIGINAL xbox games on the 360 then yes. Some games work straight away when you put them in the 360 but some you have to download something off live so it does work i think.
Yes, the original games work on the 250gb slim. Not all original games will play with the 360 however, see the related links for a description.
no xbox 360 games do not work on original xboxs